Many Americans suffer from various chronic diseases such as diabetes and obesity, and the main culprit is usually the food they eat. The standard American diet contains excessive amounts of protein and carbohydrates, neither of which is good for your health because they eventually cause you to develop insulin and leptin resistance. As a result, you gain excess weight, develop inflammation and become prone to cellular damage.

To avoid this problem, significant changes in your diet are necessary, and the best way is inducing your body into a state of nutritional ketosis, a condition where your body burns fat as its primary fuel instead of sugar. In order to reach nutritional ketosis, you must follow a ketogenic diet. But what exactly is a ketogenic diet?

This guide will tell you everything you need to know about a ketogenic diet — how you can apply it to your lifestyle and what positives you can reap from it.

The Various Benefits of the Ketogenic Diet

A ketogenic diet is a dietary approach that focuses on minimal carbohydrates, moderate amounts of protein and high healthy fat consumption — the three keys to achieving nutritional ketosis. In fact, it’s what I recommend for most people who would like to optimize their health.

There are many reasons why you should try a ketogenic diet. It can be very beneficial for people suffering from chronic conditions, or for people who would simply like to be healthier. You’ll be excited to know that a ketogenic diet can help with the following:

Weight loss: If you’re trying to lose weight, then a ketogenic diet is one of the best ways to do it, because it helps access your body fat so that it can be shed. Obese people in particular can benefit from this method. In one study, obese test subjects were given a low-carb ketogenic diet and a low-fat diet. After 24 weeks, researchers noted that the low-carb group lost more weight (9.4 kilograms; 20.7 pounds) compared to the low-fat group (4.8 kilograms; 10.5 pounds).1

Even my own body was able to feel the benefits of following a ketogenic diet. I was able to drop my weight from 180 to 164 pounds, despite eating 2,500 to 3,000 calories per day. Since then, I have increased my consumption to 3,500 to 4,000 calories just to maintain my ideal weight.

Anti-inflammatory: The human body can use sugar and fat as fuel sources. However, the latter is preferred because it is a cleaner, healthier fuel, as it releases far fewer reactive oxygen species (ROS) and secondary free radicals. By eliminating sugar from your daily food consumption, you’re decreasing your risk of developing chronic inflammation throughout your body.

Increasing muscle mass: Jeff Volek, Ph.D., is a registered dietitian specializing on how a high-fat, low-carb diet can affect health and athletic performance. In one of his books, he states that ketones have a similar structure to branched-chain amino acids that can be useful for building muscle mass. Ketones spare these amino acids, leaving higher levels of them around, which can help promote muscle mass.

Reducing appetite: Constant hunger can cause you to consume more calories than you can burn, which can eventually lead to weight gain. A ketogenic diet can help you avoid this problem because reducing carbohydrate consumption can reduce hunger symptoms. In one study, participants who were given a low-carbohydrate had reduced appetites, helping them lose weight easier.2

Lowering insulin levels: When you consume carbs, they are broken down into sugars in your body. In turn, this causes your blood sugar levels to rise and leads to a spike in your insulin. Over time, you may develop insulin resistance, which can progress to Type 2 diabetes.

By altering your diet to a ketogenic approach, you can reduce your risk of developing Type 2 diabetes. In a study published in Nutrition & Metabolism, researchers noted that diabetics who ate low-carbohydrate ketogenic diets were able to significantly reduce their dependency on diabetes medication, and may even reverse it eventually.3

The Ketogenic Diet May Help Lower Your Risk of Cancer

Cancer is a devastating disease and is one of the leading causes of death all over the world. To make things worse, the medical profession has practically ignored evidence that indicates cancer as a metabolic and mitochondrial problem, causing conventional cancer treatment methods to fall short on their promises.

I believe (as well as the numerous experts I have interviewed) that over 90 percent of cancer cases are either preventable or treatable. The key here is to view cancer as a metabolic dysfunction, allowing you to gain control over this dreadful disease. Simply put, the right foods and strategies may help suppress cancer growth while simultaneously pushing it into remission.

What most people don’t know is that cancer cells are mainly fueled by glucose. In this regard, the ketogenic diet may be the best answer. By depriving them of their primary source of fuel, as well as protein restriction, cancer cells will literally starve to death.

In addition, research regarding the ketogenic diet in relation to fighting cancer has grown over the years, and the data indicates that aside from being a form of cancer prevention, the ketogenic diet may help complement common cancer treatments, such as radiation therapy and chemotherapy.4

Different Types of Ketogenic Diets You Can Try

There are several variations of the ketogenic diet based on specific needs:

Standard ketogenic diet (SKD): SKD is the type I typically recommend for most people, because it is very effective. It focuses on high consumption of healthy fats (70 percent of your diet), moderate protein (25 percent) and very little carbohydrates (5 percent).5

Keep in mind that there’s no set limit to the fat, because energy requirements vary from person to person, depending on their daily physical activities. However, the majority of your calories still need to come from fats, and you still need to limit your consumption of carbohydrates and protein for it to become a standard ketogenic diet.6

Targeted ketogenic diet (TKD): TKD is generally geared toward fitness enthusiasts. In this approach, you eat the entirety of your allocated carbs for the day before and after exercising. The idea here is to use the energy provided by the carbs effectively before it disrupts ketosis.7

If you’re following this approach, I recommend that you eat carbs that are easily digestible with a high glycemic index to avoid upsetting your stomach. Then, when you’re done exercising, increase your intake of protein to help with muscle recovery, then continue consuming your fats afterward.8

Cyclic ketogenic diet (CKD): Whereas TKD is focused on fitness enthusiasts, CKD is focused more on athletes and bodybuilders. In CKD, you cycle between a normal ketogenic diet, followed by a short period of high carb consumption or “re-feeds.”9 The idea here is to take advantage of the carbohydrates to replenish the glycogen lost from your muscles during athletic activity or working out.10

If you’re a high-level athlete or bodybuilder, CKD may be a viable method for you. It usually consists of five days of SKD, followed by two days of carb-loading. Again, this method isn’t recommended for most people who do not have a high rate of physical activity.11

High-protein ketogenic diet: This method is a variant of the SKD. In a high-protein diet, you increase the ratio of protein consumption to 10 percent and reduce your healthy fat consumption by 10 percent. In a study involving obese men that tried this method, researchers noted that it helped reduce their hunger and lowered their food intake significantly, resulting in weight loss.12 If you’re overweight or obese, this may help you at first, then you can transition to SKD after you normalize your weight.

Restricted ketogenic diet: As mentioned earlier, a ketogenic diet can be an effective weapon against cancer. To do this, you need to be on a restricted ketogenic diet. By restricting your carbohydrate and calorie intake, your body loses glycogen and starts producing ketones that your healthy cells can use as energy. Because cancer cells cannot use these ketones, they starve to death.13

As of the moment, there is no industry standard as to how many calories should be consumed in a restricted ketogenic diet, but there are published studies that provide estimates. In one example, a 65-year-old woman who was suffering from glioblastoma multiforme (GBM), an aggressive type of brain cancer, was put into a restricted ketogenic diet that started with water fasting and then proceeded to consume 600 calories a day only.

After two months, her weight decreased and the ketones in her body elevated. Furthermore, there was no discernable brain tumor tissue detected using magnetic resonance (MRI) or fluorodeoxyglucose-positron emission tomography (FDG-PET) imaging scans.14

In another study that involved mice with brain tumors, administration of 65 to 75 percent of the recommended daily calories helped reduce tumor growth by 35 and 65 percent among two different test groups. Total carb consumption was restricted to 30 grams only.15 A different mice study strictly limited carb consumption to 0.2 percent only, which helped reduce the growth of glucose-fermenting tumors.16

In a pilot trial published in Nutrition & Metabolism, a 70-gram carbohydrate restriction combined with a ketogenic diet may help improve quality of life among patients affected with late-stage cancer. However, more trials will need to be conducted regarding its effectiveness against cancer progression, according to the researchers.17

At any rate, if you wish to undergo a restricted ketogenic diet for specific health reasons, consult with your doctor first. They may be able to help you figure out the optimal number of calories to consume and carbohydrates to restrict for maximum effectiveness.

Popular Low-Carb Diets Versus the Ketogenic Diet: How Do They Compare?

Of course, the ketogenic diet is not the only low-carb diet out there, and you may have heard of other popular eating strategies that may help improve your health. So how do they stack up against the ketogenic diet?

Atkins Diet Versus Ketogenic Diet

The Atkins diet is a low-carb eating program promoted by Dr. Robert C. Atkins, who wrote about it back in 1972.18 In essence, the diet is all about restricting carbohydrate consumption while emphasizing protein and healthy fats as sources of fuel, as well as high-fiber vegetables to help promote weight loss.19

Similar to the ketogenic diet, you will have to avoid starchy and sugary sources of carbohydrates like bread, pasta and potatoes, as well as processed meats and junk foods. Instead, you will have to consume more grass fed meats, pasture-raised eggs, cheese and fatty fish.
20

One key difference that sets the Atkins diet apart from the ketogenic diet is that it allows unlimited consumption of protein, which can cause a significant drawback to your health.21 Research suggests that excessive protein consumption can stimulate your mammalian target of rapamycin (mTOR) pathway, accelerating aging and cancer growth.

Paleo Diet Versus Ketogenic Diet

The Paleo diet is another popular eating trend based on the habits of our Paleolithic ancestors. Its foundation focuses on eating lean meat, seafood, fresh fruits and nonstarchy vegetables. You must also remove processed foods, drinks, grains and sugar from your eating habits for the Paleo diet to have a positive effect on you.

While research suggests that the Paleo diet may benefit your health, one foreseeable problem with this eating regimen is that it consumes too much protein, which can negatively affect your health in the long run. Instead, I believe it is far better to moderate your protein intake and increase consumption of healthy fats.

How Many Carbs a Day Should You Get While on a Ketogenic Diet?

When determining the ideal max carbs on keto, I believe that the following amounts can be effective for most people:

70 percent healthy fats

25 percent high-quality protein

5 percent carbohydrates

Ideally, your keto carb limit should be kept to under 50 grams a day, or 4 to 10 percent of your daily calories. This will help you transition to burning fat for fuel. However, this number may change depending on various factors. For example, if you have Type 2 diabetes, you will have to restrict your carb intake to as little as 20 grams per day. All in all, you will have to rely on your body’s feedback to help you identify the ceiling amount for your carb intake.

How to Get Started on the Ketogenic Diet

Taking your first step into the ketogenic diet is an exciting phase for your health. But before coming up with an actual ketogenic diet food list, it’s important to first take a look at what you’re eating now and take out anything that’s unhealthy. This means that you have to remove sugars, grains, starches and packaged and processed foods from your diet. Basically, anything that won’t add to your new eating regimen has to go. This is what I call a “pantry sweep.”

Furthermore, avoid drinking milk because it contains the carbohydrate galactose — drinking just one glass can basically eat up your entire carb allotment for the day. In addition, avoiding milk helps lactose-intolerant people to implement the ketogenic diet. The table below provides a good overview of many other foods that are surprising sources of sugar. If you have any of the following in stock, I encourage you to take them out immediately:

Condiments Beverages Snacks Meals

Salsa

Ketchup

Packaged salad dressings

Lattes

Flavored kefir

Commercially prepared smoothies

Fresh or dried fruits

Flavored yogurt

Peanut butter with added sugar

Frozen dinners

Many Thai and Vietnamese dishes, such as Pad Thai

Hydrogenated fats, such as canola and sunflower oil, must also be avoided, as they’re typically high in omega-6 fats, which can easily throw off your omega-6 to omega-3 ratio. Another thing that you should work on is improving your skill in reading product labels, particularly total carbohydrates. This will be your most important indicator to help you compute your overall carbohydrate consumption, allowing you to create your ketogenic diet.

The Ideal Keto Diet Foods to Eat

When it comes to the core of an actual ketogenic diet, remember that you need to consume only moderate amounts of protein, or about one-half gram per pound of lean body mass, each day. In addition, carbohydrates must be minimized and high-quality fats increased to serve as your new fuel source.

To ease yourself into a ketogenic diet meal plan , I recommend adding C8 medium-chain triglyceride (MCT) oil into your food. It’s typically more expensive than other types of MCT oil, but I prefer it because it converts into ketones more effectively.

You can start with 1 teaspoon per day, then gradually increase your consumption to 2 to 3 tablespoons. If your stomach does not agree with MCT oil, you can try MCT powder, which is easier on your stomach. From there, you can start adding more healthy fats to your diet using the keto food list below:

Foods Rich in Healthy Fats

The table below should comprise the bulk of your ketogenic diet foods:

Coconut oil

Animal-based omega-3 fats from healthy sources such as wild-caught Alaskan salmon, sardines, anchovies and krill

Olives and olive oil (make sure they are third-party certified because most olive oils are diluted with vegetable oils)

Raw, grass fed butter

Raw nuts, such as macadamia, almonds and pecans

Various seeds such as pumpkin, sesame, cumin and hemp

Avocados

Grass fed meats

Lard and/or tallow

Ghee (clarified butter)

Raw cacao butter

Organic pastured eggs

Ideally, your healthy fat consumption should comprise 70 percent of your daily requirements, so be sure to incorporate the aforementioned foods adequately into your daily meal plan.

Fiber Is Important

Fiber, an essential component found in fruits and vegetables, plays an important role in the ketogenic diet. Research indicates that fiber can offer various health benefits, depending on what type you consume:

Soluble fiber: This type of fiber helps you feel full longer, which can prevent you from overeating, as well as hindering the breakdown and digestion of dietary cholesterol, which may help normalize your cholesterol levels. It also helps slow down the rate of carb digestion, which may control blood sugar spikes.

Insoluble fiber: Commonly found in vegetables, this type of fiber adds bulk to your stool, which can help facilitate regular waste elimination. In addition, it may reduce the risk of bloating, pain and constipation.

Digestive-resistant starch: This type of fiber ferments in your large intestines, nourishing your gut bacteria to support optimal health.

Leafy vegetables are great sources of fiber (as well as various nutrients and antioxidants), such as:

Broccoli

Spinach

Kale

Parsley

Swiss chard

Collard greens

Arugula

Beet greens

Brussels sprouts

You may also consider adding these other low net carb vegetables to your regular meals:

Asparagus

White mushrooms

Cucumber

Tomatoes

Cauliflower

Eggplant

Most Fruits Should Be Off Limits

While fruits are generally healthy for you, the majority of them should be avoided in a ketogenic diet because of their high amounts of sugar. However, certain citrus fruits and berries are safe to eat in moderate quantities, because they are rich in antioxidants that can support your health.

Blackberry

Blueberry

Cranberry

Limes and lemons (You can add a few slices to your drinking water)

Grapefruit (eat a few sections in lieu of vegetables)

Watch What You Drink

As for beverages, there are several you can choose from. The most important is high-quality filtered water, but you may also drink organic black coffee (without any sweeteners or milk), which is rich in antioxidants. Coconut milk can be consumed, as well as herbal teas because they are rich in various antioxidants and nutrients.

Beware of Lectins

Lectins are sugar-binding plant proteins that can attach to your cell membranes, which can cause weight gain and ill health even if you eat a nutritious diet. They’re found in plenty of plant foods, including eggplants, tomatoes and squash. However, complete avoidance of lectins is neither possible nor ideal because you would be missing out on other nutrients in vegetables. Instead, here are some effective ways you can reduce lectins from your diet:

Peeling and deseeding your fruits and vegetables: The skin, hull and seeds tend to contain the highest amounts of lectins.

Sprouting: Seeds, grains and beans will deactivate lectins when sprouted. However, there are exceptions such as alfalfa, where the inverse actually happens.

Fermenting: Fermented vegetables not only have reduced lectin content, but also an improved nutritional profile.

Using a pressure cooker: Lectins are effectively neutralized when using this household appliance. Avoid using slow cookers because they can actually raise the lectin content due to the low cooking temperature.

As you can see, the list of foods you can eat is quite extensive. But what does an actual day of following a ketogenic diet look like? To help you ease into it, here’s a sample one-day eating plan that can guide you:

Sample One-Day Ketogenic Meal Plan

1. As you start your day: Measure your glucose level when you wake up. You can have a cup of coffee or tea with 2 tablespoons of grass fed butter, coconut oil or MCT oil melted into it.

2. Breakfast: As hunger begins to set in, start consuming mostly protein and fats together, such as two pasture-raised eggs cooked in 1 tablespoon of ghee and 1 tablespoon of coconut oil. Alternatively, you may cook one egg with two strips of organic bacon.

Time-pressed individuals can make a smoothie using the following ingredients:

Unsweetened almond milk

Unsweetened protein powder

Organic cream

1 tablespoon of coconut milk or a teaspoon of MCT oil

Two strawberries or a small handful of blueberries

Stevia to taste

3. Lunch: Lunch is best taken when your glucose reading is 80 or lower, or a few hours after your first meal. Start with 2 to 3 cups of salad greens along with half an avocado. An ideal amount of protein should also be consumed (chicken, fish or lamb), plus 2 tablespoons of extra virgin olive oil, a splash of white wine vinegar and 2 tablespoons of a hard cheese grated over the top.

4. Dinner: Ideally dinner should be eaten three hours before bedtime. If you eat at night when your energy levels are low, you risk flooding your mitochondria with reactive oxygen species (ROS). This last meal for the day should have a smaller portion of protein cooked in high-quality fat. A serving of vegetables drizzled with olive oil or coconut oil must also be added. Keep in mind that your overall serving should be lighter than your breakfast or lunch.

5. Snacks: Fat-rich foods light on your stomach such as macadamia nuts and pecans are keto-friendly snacks. Celery, avocado and my Fat Bomb recipe below are great choices as well.

Ketogenic Recipes You Can Try



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Oftentimes, people underestimate the potential a healthy diet can bring to your overall well-being. In truth, the food you eat contributes to 80 percent of your overall health, with the remaining 20 percent dependent on various lifestyle factors. Now that you’re aware of what the ketogenic diet can be capable of, the question is: How do I start making ketogenic meals in the first place?

In my book “Fat for Fuel,” I sought to educate readers about the benefits of using healthy fats as a catalyst to bring about improved mitochondrial function, thus allowing you to achieve better health. In essence, the book answers WHY it is important for you to consume healthy fats. However, you still need to know HOW to prepare the right ketogenic foods in an appetizing way.

That’s why I co-wrote the “Fat for Fuel Ketogenic Cookbook” alongside renowned Australian celebrity chef Pete Evans. This book combines research-backed medical advice with delicious, kitchen-tested recipes that will help make shifting to fat-burning much easier. Whether you’re just a budding cook or a master chef, there’s a delicious meal waiting to be prepared that’ll take your health to the next level.

I also encourage you to try these keto-friendly recipes below, which I use in my daily routine. They’re not included in the book, but they serve as a good introduction to the ketogenic diet.

Dr. Mercola's Chocolate Fat Bomb Recipe

Dr. Mercola’s Chocolate Fat Bomb Recipe

Ingredients:

1 tablespoon of black sesame seeds

1 tablespoon of flax seeds

1 tablespoon of black cumin seeds

1 tablespoon of pumpkin seeds

1 tablespoon of organic psyllium

1 tablespoon organic psyllium

1 tablespoon chia seeds

1 scoop Dr. Mercola’s Organic Greens

1 teaspoon calcium from ground-pastured eggshells

1/2 ounce cocoa butter

1 whole avocado

1 to 2 tablespoons medium-chain triglyceride (MCT) oil

1 drop Stevia

Filtered water

Procedure:

1. Let the black sesame, flax, pumpkin and black cumin seeds soak overnight (roughly 14 hours) in a mixing bowl.

2. Mix the remaining ingredients.

3. Pour water to desired consistency — it can range from a liquid to pudding texture.

4. Using an immersion blender, blend for two to five minutes for desired consistency.

Dr. Mercola's Keto Salad Recipe

Dr. Mercola’s Keto Salad Recipe

Ingredients:

2 ounces ground organic lamb

1/3 red onion

1 whole avocado

2 to 4 ounces sunflower seed sprouts

1 to 2 tablespoons Dr. Mercola’s coconut oil

6 pieces anchovies (packed in salt, not oil)

A handful of oregano to your desired flavor (cut finely)

2 to 4 ounces fennel bulb and/or leaves

2 sprigs rosemary (chopped finely)

100 grams red pepper

A handful Malabar spinach

1 habanero pepper (chopped)

1 tablespoon salmon fish roe

2 to 3 ounces grass fed pastured butter

3 ounces fermented vegetables

4 to 7 shakes Dr. Mercola’s Himalayan salt

10 to 20 shakes ground pepper (depending on your preference)

Procedure:

1. Gently heat the coconut oil in a frying pan.

2. Add onions and ground organic lamb at very low heat for 20 to 25 minutes.

3. In a separate bowl, cut and mix the remaining ingredients.

4. After 25 minutes, add the onions to the salad and then mix it well.

5. Rinse salt off the anchovies and soak them for five minutes.

6. Split each anchovy into three pieces and add to the salad.

7. Add the organic lamb to the salad.

Dr. Mercola's Macadamia Nut Fudge Recipe

Dr. Mercola’s Macadamia Nut Fudge Recipe

Ingredients:

300 grams cocoa butter

200 grams Dr. Mercola’s coconut oil

200 grams raw, organic-pastured butter

300 grams macadamia nuts

8 full droppers of stevia (you can use Luo Han as a substitute)

1 teaspoon Dr. Mercola’s organic vanilla extract

Procedure:

1. Mix the butters and oils under low heat for three to five minutes.

2. Once the mixture cools, add the stevia and the vanilla extract.

3. Pour the fudge into 8-ounce wide ball jars.

4. Spread the nuts evenly across all jars.

5. Refrigerate until the fudge reaches the desired consistency

This recipe makes eight servings.

Are These Other Foods Ketogenic?

Aside from the various keto-friendly foods mentioned in this article, you may be wondering if there are other options that may help support your ketogenic diet. If you find that the ketogenic diet is limiting when you start out, don’t worry. There’s actually a lot you can add to your diet that’s “keto” as long as consumption is controlled. Here are some commonly asked questions:

Is Hummus Ketogenic?

Hummus is a spread or dip made by grinding chickpeas, tahini, garlic, lemon juice, salt and olive oil together. Other spices like red pepper may be added as well to alter the flavor.22

Chickpeas are naturally high in carbs — a single cup alone contains 45 grams of carbohydrates.23 However, you can modify the recipe to make it more nutritious. Try this recipe from Pete Evans, which replaces the chickpeas with beetroot.24 Beware, though, that beets have the highest sugar content of all vegetables, so consume them in very controlled amounts.

Is Popcorn Ketogenic?

If you’re just starting out with the ketogenic diet, you may be wondering if this popular snack can fit into your new eating plan. The answer: It depends on your carbohydrate consumption.25 According to the United States Department of Agriculture (USDA), 1 cup of oil-cooked popcorn contains 6.29 grams of carbohydrates.26 Since I recommend that people usually limit their net carb consumption to under 50 grams per day, a single serving of popcorn may throw you off ketosis.

If you choose to add popcorn into your ketogenic diet, I recommend making your own at home to minimize carb intake by using organic corn kernels. Using healthy fats to cook the kernels will also increase the ketogenic profile of the meal. Here’s an easy popcorn recipe I suggest you follow.

Is Spaghetti Squash Ketogenic?

Spaghetti squash (Cucurbita pepo) is a long, oblong-shaped yellow vegetable. When cooked, its flesh separates into thin noodles that resemble the beloved Italian dish. In this regard, the vegetable is sometimes called “squaghetti.” If you want to try it, here’s a recipe that you can follow. But is this food keto-friendly? Similar to popcorn, the answer depends on your needs. A single cup of spaghetti winter squash contains 6.98 grams of carbohydrates, which is well within the limit of your ideal daily net carb intake.27

Is Peanut Butter Ketogenic?

Peanuts (and peanut butter) are high in omega-6 fatty acids, so consuming too much of this food can throw off your omega-6 to omega-3 ratio.28 Peanuts also contain lectins, which may exacerbate symptoms in people who have autoimmune diseases.29

Despite conflicting information, it is still possible to add peanut butter to your ketogenic diet, but I don’t generally recommend it, even when used sparingly. If you still want to push through with eating peanut butter, make sure that it is homemade by soaking the nuts overnight before production to reduce the lectin content.

Also, calculate your servings accordingly to prevent going over your daily net carb intake to prevent throwing you off ketosis.30 Lastly, avoid commercial peanut butter, because the peanuts used are heavily sprayed with pesticides.

Is Cheese Ketogenic?

Certain types of dairy are recommended as part of the ketogenic diet, and cheese is one of them. That’s because it’s rich in healthy fat that may help augment your health, similar to other fat-rich foods. When choosing cheeses, make sure they’re made using raw grass fed milk to get all the healthy fats. Remember, the longer a cheese has been aged, the lower the carb content.31

Is Honey Ketogenic?

Raw honey is a natural sweetener with various potential health benefits, such as fighting microbes and boosting immune system function. However, it is filled with fructose that can throw you off ketosis, even when taken in small amounts. It is recommended that you avoid honey if you want the ketogenic diet to truly benefit your health.32

Is Almond Milk Ketogenic?

Almond milk is a viable alternative to dairy milk for the ketogenic diet, and it’s also ideal for lactose-intolerant individuals. In addition, research suggests that the fatty acids found in almond milk may help reduce the risk of heart disease.33 If you want to add almond milk to your diet, do not purchase the ones made with pasteurized nuts, as they may harm your health. Instead, make your own using raw, unpasteurized almonds. Here’s how to make almond milk at home.

Is Butternut Squash Keto?

Butternut squash is a type of winter squash with more carbohydrates than summer squash. In light of this, adding it to your ketogenic diet isn’t recommended. However, you may still consume this vegetable, but in very small, controlled amounts. Make sure you closely monitor your carb consumption to prevent going off ketosis.34

Are Tomatoes Ketogenic?

According to the USDA, a 100-gram serving of red tomatoes has 3.89 grams of carbohydrates.35 You may add this fruit to your ketogenic diet safely and gain its beneficial nutrients, particularly lycopene. Researchers from Ohio State University suggest that this antioxidant may help protect your skin from sun damage, which may result in a lowered risk of skin cancer tumors.36

Remember to always cook tomatoes to improve their nutritional value. Research shows that cooked tomatoes have increased lycopene content, as well as total antioxidant activity. In one study that heated tomatoes to just over 190 degrees Fahrenheit for two, 15 and 30 minutes, results indicated that:37

Beneficial trans-lycopene content increased by 54 percent, 171 percent and 164 percent, respectively

Levels of cis-lycopene (which is a form easily absorbed by your body) rose by six, 17 and 35 percent, respectively

Overall antioxidant levels increased by 28, 34 and 62 percent, respectively

Who Should Not Be on a Ketogenic Diet?

Based on published studies, a ketogenic diet can be beneficial for optimizing your health. However, not everyone should follow this eating plan due to certain factors. If you fall within any of the following categories, I recommend that you do not push through with a ketogenic diet for safety reasons:38,39

Pregnant:  During pregnancy, your body undergoes many changes that require nutrients from various sources. Therefore, severely restricting yourself from healthy carb sources may negatively impact your baby’s health.40

Breastfeeding: Breastfeeding women should avoid a ketogenic diet throughout the child’s breastfeeding phase.

That’s because women need oxaloacetate, a compound essential for creating lactose for breastmilk, which is essential for their baby’s growth.

An athlete who’s about to start a new season: Athletes can greatly benefit from the energy produced by ketones, but it takes around four to six weeks for your body to achieve ketosis.

During this time, your body has not yet adapted to using fat as an energy source, which may impede your performance in upcoming athletic events.

If you wish to take advantage of the ketogenic diet, give your body time to adapt by planning ahead during the offseason.

Had a gallbladder removed: Your gallbladder collects and concentrates bile, allowing your digestive tract to absorb dietary fat properly.

Without it, dietary fat won’t be absorbed as much, which can lead to nutrient deficiencies, since a ketogenic diet largely relies on fat for nutrients.

Has a history of kidney stones: If you have developed kidney stones before, a ketogenic diet may increase your chances of getting them again.

That’s because ketones are naturally acidic, which increases the production of uric acid and the formation of stones.

On the other hand, kidney stones may be prevented while on a ketogenic diet if you increase your consumption of potassium from leafy greens and other high-fat foods such as avocado.

Staying hydrated throughout the day also helps lower your risk of developing stones.

Your body is still growing: In one study, epileptic children experienced a reduction in symptoms and improved cognitive performance when a ketogenic diet was introduced.41

However, this may have a negative effect on the growth of their bodies in the long run, according to a study published in the journal Developmental Medicine & Child Neurology.42

Researchers believe that a ketogenic diet reduces the production of insulin-like growth factor 1 (IGFT-1), a hormone essential in the development of the bones and the muscles of kids and teenagers.

If your child absolutely needs to be on a ketogenic diet, consult with a doctor first to discuss any potential growth issues.

Naturally thin: Naturally thin people with a body mass index (BMI) of 20 or less should avoid a ketogenic diet because it may induce further weight loss, which can be detrimental to your overall health.

Have rare metabolic disorders: Disorders such as Gaucher disease, Tay-Sachs, Niemann-Pick and Fabry disease can interfere with fat metabolism, thus affecting energy production.43

If you have any of the aforementioned disorders, a ketogenic diet is not recommended as it relies largely on fat for energy production.

Struggling with anorexia: Anorexics may suffer from rapid starvation if they follow a ketogenic diet, because they already limit their calorie consumption and have an extreme fear of eating fat, which a ketogenic diet has lots of.

If they embark on a ketogenic eating plan, they may also suffer from low energy, because a ketogenic diet relies on dietary fat as the main source of fuel.

However, their overall well-being may benefit from ketones through careful medical and psychiatric supervision.

Pancreatic insufficiency: Pancreatic insufficiency is a condition where your pancreas does not produce enough enzymes to help break down and absorb nutrients in your digestive tract.

If you have an enzyme deficiency, I suggest having it treated first before embarking on a ketogenic diet, because your digestive system will have a hard time absorbing dietary fats.

The Side Effects of a Ketogenic Diet

Starting a ketogenic diet can help optimize your health tremendously in many ways. But like any major dietary changes, it can have several undesirable (but not alarming) side effects, such as:

Bad breath: Once you start on a ketogenic diet, you may notice that your breath will have an undesirable odor due to the increased acetone levels in your body. Acetone is a ketone produced during ketosis, which is expelled in your urine and partly your breath.

On a positive note, detecting acetone in your breath is a good indicator that your ketogenic diet is working.44 You can brush your teeth and/or rinse your mouth with coconut oil to help remove the bad breath.

Short-term fatigue: You may begin to feel fatigue at the start of a ketogenic diet. It’s actually one of the main reasons why many people choose not to continue with this approach long before they can enjoy the benefits.45

The reason why you get tired at the start is your body is adapting from using carbohydrates for energy to healthy fats. The transition doesn’t happen overnight, and it may take you anywhere between seven to 30 days before your body achieves full ketosis.46

Frequent urination: During the first few days of implementing a ketogenic diet, you may notice that you’re using the bathroom more often. That’s because your body is dumping the glycogen in your liver and muscles as urine. Furthermore, as the insulin level in your blood begins to drop, excess sodium is expelled in the form of urine as well.47

Digestive problems: A huge shift into any dieting method can increase your risk of digestive problems, and the ketogenic diet is no exception. Constipation is commonly reported among those who are starting out on a ketogenic diet, but it may disappear in a few weeks once your body gets used to the healthier food you’re eating.48

Sugar cravings: You may develop intense sugar cravings as your body switches from sugar to fat for fuel. However, I encourage you not to give in to temptation. You can practice various relaxation method such as the Emotional Freedom Techniques or yoga to take your mind away from sugary foods.49

Hair loss: You may notice more strands of hair getting stuck on your brush during the first few days of your ketogenic diet. Don’t worry because this is not a big cause of concern, since hair loss can result from any major dietary changes in general. It will stop once your body achieves ketosis.50

Is the Ketogenic Diet Safe?

Based on published research, the benefits of the ketogenic diet are clear and defined. Weight loss, lowered insulin levels and reduced appetite are health improvements that most people will enjoy in the long run. That being said, there are some side effects that you may experience when you first start out, such as those mentioned above.

In addition, you may experience “carb flu,” a condition that mimics flu-like symptoms, such as fatigue and headaches. This generally occurs during the onset of the ketogenic diet because your body will have to adjust after relying on carbohydrates for fuel for so long.51 The symptoms typically last less than a week (or two) only. If carb flu does happen to you, here are some things you can do to feel better while you’re transitioning into ketosis:52

Increase water intake

Slightly increase your consumption of healthy fats and proteins

Avoid sugar-free foods

Once you feel better, you can regulate your intake of water, fats and proteins into a full-fledged ketogenic diet. Aside from carb flu, be warned that staying in long-term, continuous ketosis may have drawbacks that may actually undermine your health and longevity. To stay on the safe side, I recommend undergoing a cyclic ketogenic diet. The “metabolic magic” that ketosis brings to the mitochondria actually occurs during the refeeding phase, not during the starvation phase.

What Are Keto Sticks and Strips?

Keto strips and sticks are useful tools in helping you figure out whether you’re in ketosis or not. There are three common ways to achieve this objective:53

Blood ketone meter: The most accurate tool, but is generally expensive

Urine stick: It will provide a Yes/No answer to whether you’re in ketosis or not, but it will not provide a measurement of your current ketones

Breath ketone meter: More accurate than a urine stick, but the accuracy of results can vary54

Blood ketone strips are considered the best testing tool, but they can be financially exhausting in the long run. To help minimize costs, you can check for ketones every few days instead of daily.

The Ketogenic Diet Can Positively Transform Your Health

Going into nutritional ketosis by following a ketogenic diet is one of the most radical but highly beneficial lifestyle changes you can make to improve your health. As with most dietary changes, always remember to listen to your body. If you feel any side effects other than the ones listed above, then necessary adjustments to your food intake may be needed.

Frequently Asked Questions About the Ketogenic Diet

Q: Is the ketogenic diet healthy?

A: As numerous studies have indicated, the ketogenic diet may potentially benefit your health in numerous ways. However, long-term ketosis may have unwarranted negative effects on your health, so it’s better to cycle out of ketosis once in a while for safety reasons.

Q: How do I go into nutritional ketosis?

A: To enter into a state of nutritional ketosis, take a look at what you’re currently eating and remove any unhealthy items such as sugary drinks and processed foods. The next step is to consume whole, organic foods that are high in healthy fats, have moderate protein and only minimal carbohydrates.

Q: How long does it take to get into ketosis?

A: Each person reacts differently to a ketogenic diet. You may experience a few side effects in the first seven to 30 days, such as constipation, fatigue and urination. But once your body normalizes, you will start feeling the benefits.

Q: How many carbs can I consume to be in a state of ketosis?

A: It’s generally recommended that only 5 percent of your daily diet is allocated to carbohydrates because if you consume more than that, your body gets thrown off ketosis. However, this is only for SKD, or the standard ketogenic diet. If you’re an athlete or a bodybuilder, you can consume more carbs without affecting ketosis by following a targeted ketogenic diet (TKD) or a cyclic ketogenic diet (CKD).

Q: How long does it take before ketosis shows results?

A: The results of ketosis can be felt as early as the first week when your body begins to dump water and carbohydrates, but the weight loss will only be minor.55 As time goes on, your body will begin to consistently shed excess fat, provided you stick to your ketogenic program.56

Q: What is the keto flu?

A: Keto flu, or carb flu, is a possible reaction your body may experience as a result from switching to fat for fuel from carbs. Issues like muscle soreness, fatigue, headaches and general fogginess may occur.57

Q: Why am I not losing weight on keto?

A: There are a few possible reasons why you’re not undergoing ketosis, such as:58

Eating too much fruit: Fruits contain fructose that can throw you off ketosis when consumed too much.

You’re consuming hidden carbohydrates: Certain vegetables, dairy and nuts have high carb content, so make sure that you review the carb content of the food you’re eating.

You’re eating too much: Consuming too much healthy fat can drastically increase your daily caloric intake, preventing you from losing weight.

You’re eating too little: Consuming too few calories can slow down your metabolism, making your body conserve itself in response to inadequate energy levels.

Q: What is keto coffee?

A: Keto coffee is simply coffee with MCT oil and raw, grass fed butter, which gives the drink not only energy-boosting, but also fat-burning properties.

Q: Is the ketogenic diet safe long-term?

A: Long-term ketosis may be unhealthy, so you should switch to a cyclical ketogenic diet to introduce appropriate amounts of carbohydrates into your body once in a while.

Q: How many carbs a day should you consume on a ketogenic diet?

A: Limiting your net carb intake to under 50 grams per day can help transition your body into burning fat for fuel.

Q: How much weight can you lose on a ketogenic diet?

A: There’s no specific answer for this question, as it is dependent on many factors. However, you may be able to spot improvements right away. In a study that tested the ketogenic diet on obese people, researchers noted that after 24 weeks, the test subjects lost around 14 kilograms (30.8 pounds) of excess weight, going from an average 101.03 kilograms to 86.67 kilograms (222.7 pounds to 191 pounds).59

Q: Can you eat beans on keto?

A: It’s possible to eat beans, but only during the initial stage of the ketogenic diet. That’s because they’re high in net carbs, making them ideal only when you begin cycling in and out of ketosis. Beans should be consumed during your carb “feasting” days.

Q: Do calories matter on keto?

A: Counting your calories on a ketogenic diet is important as it will dictate your weight goals. In my case, I had to increase my caloric consumption in order to maintain my ideal weight. If you’re trying to lose weight, cutting back on your calories may work to your benefit.

Q: Can you drink alcohol on a ketogenic diet?

A: In general, I don’t recommend that you drink any form of alcohol, especially when you’re trying to lead a healthy lifestyle.

Fat for Fuel: A Radical Approach to Achieving a Healthier You

If you’ve been experiencing weight problems or dealing with other health issues for a long time and you’re struggling to become healthier, you’ve come to the right place. In my new book, “Fat for Fuel: A Revolutionary Diet to Combat Cancer, Boost Brain Power, and Increase Your Energy,” I will show you many helpful strategies that can boost your health, such as:

Shifting your body from burning sugar to fat for energy

Controlling your weight by changing what and when to eat

Eliminating sugar cravings

Optimizing your mitochondrial health

Starving cancer cells

And a whole lot more!

I encourage you to order my new book and experience positive changes in your body that will last a lifetime.





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