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KetoFast Review - 10 Things You Need to Know

Do you want to rejuvenate your health through diet and alternative medicine? KetoFast, the latest book from Dr. Joseph Mercola, promises to promote weight loss and optimize health through ketogenic eating. Our research team was intrigued. Who is Dr. Mercola? Does his book offer a step-by-step guide to the keto diet, or is it a waste of time and money?

We looked into Dr. Mercola and the science behind the ketogenic diet. We found out everything you need to know about the latest alternative health guru.

KetoFast can be purchased through their Official Site.

KetoFast Readers: Noom is offering our readers a risk-free trial, for a limited time. Click here for more information!

What is KetoFast?

KetoFast is a book that promotes strategically timed fasts to encourage weight loss and optimize brain function, amongst other functions.

By combining fasting with the ketogenic diet, dieters will reduce visceral fat, lower blood pressure, improve cholesterol levels, and reduce health problems.

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How Did KetoFast Start?

Dr. Joseph Mercola wrote KetoFast. Dr. Mercola is a controversial physician who sells a variety of alternative medicine supplements. Unfortunately, it seems like he has gotten in some trouble with the Food and Drug Administration.

The FDA recently ordered Mercola to stop making illegal claims regarding several products he sells on his website.

Despite several publicized controversies, Dr. Joseph Mercola has a considerable fan base. The University of Illinois educated doctor has authored several books and is a member of the Association of American Physicians and Surgeons. He often criticizes the overuse of medication and surgeries. He advocates for patients’ rights and the use of homeopathy.


KetoFast Claims

KetoFast covers:

  • How food can make you sick
  • Stem cell activation through fasting
  • The cyclical keto diet versus the conventional keto diet
  • Fasting is safe
  • How fasting detoxifies your body
  • Fasting for weight loss
  • Fasting for appetite suppression

KetoFast claims to promote healing through diet. Is food alone enough to change your life? We took a look at the science to find out.

KetoFast Ingredients

The KetoFast book does not discuss ingredients, but you can purchase the KetoFast cookbook on Amazon.

According to StatPearlsa ketogenic diet consists of, “high-fats, moderate-proteins, and very-low-carbohydrates.”

Does it Work?

Does KetoFast Work?

KetoFast promotes both ketogenic eating and fasting to optimize health. There is some science to support both methods. A ketogenic diet requires eating meager carbohydrate meals to put your body into a state of ketosis, according to the International Journal of Environmental Research and Public Health

Ketosis is the metabolic state that occurs when the body breaks down fat for energy.

Fasting is another weight loss method that is rapidly gaining popularity. One study published in the Journal of Clinical Investigation suggests that intermittent fasting can increase growth hormone secretions. Another study published in the International Journal of Obesity (London) found that fasting could could be a good option for weight loss maintenance.

There’s evidence that fasting can help you lose weight, but there are also concerns that fasting can be dangerous to your health.

Additionally, the National Institutes of Health found that what you eat is probably more important than when you eat. Overall, more research is needed to confirm the benefits of fasting, per Current Obesity Reports

KetoFast Benefits and Results

We took a look at the reviews from verified KetoFast customers. The results were mixed. Some readers were disappointed that there wasn’t a step-by-step guide or recipes for ketogenic meals to rejuvenate your health. KetoFast does not contain any information on meal planning or alternative health remedies. Some reviewers thought the book was repetitive and provided pseudoscience instead of evidence-based weight loss solutions.

Not all KetoFast reviews were negative, however. One reader called the book “clear, concise and informative.” Another verified purchaser thanked Joseph Mercola for changing their life through nutrition and toxin avoidance.

Weight Loss

Details on KetoFast and Weight Loss

As with any diet product, the results depend on how closely you follow the program. Our researchers concluded that this book is more focused on education than on meal planning and ketogenic meals.

We listed the KetoFast pros and KetoFast cons so that you can make an informed decision before you decide to read this book.

KetoFast Pros:

  • Informative
  • It only costs $11.99
  • Written by a physician

KetoFast Cons:

  • Joseph Mercola’s reputation
  • Not a step-by-step guide
  • No meal plans or recipes
  • Some negative reviews
  • No conclusive science to support claims
Side Effects

Potential KetoFast Side Effects

There are some side effects to be concerned with if you plan to try fasting or a ketogenic diet.

According to BMC Complementary & Alternative Medicine, the side effects of fasting may include:

  • Fatigue
  • Nausea
  • Headache
  • Back Pain
  • Abdominal Pain
  • Diarrhea

According to the Asian Pacific Journal of Clinical Nutrition, a deficient carbohydrate diet may cause:

  • High cholesterol
  • Dizziness
  • Fatigue
  • Muscle aches
  • Mood swings
  • Bad breath
  • Dehydration
  • Frequent urination
  • “Keto flu”

Neither fasting nor anyone with any preexisting conditions should use a ketogenic diet. Anyone taking any medication should also avoid these diets.

KetoFast is an interesting read. Joseph Mercola has a unique perspective on dieting and using food to boost your health. Is it the revolutionary diet approach you’ve been wanting? Probably not. There is no clinical evidence to support the claims made in this book.

Dieting doesn’t have to mean giving up everything you love. The most successful weight loss programs focus on moderation. Eating a balanced diet and regularly exercising will help you lose weight.

What Users Are Saying

What Users Are Saying

“Well explained and documented – I love Dr. Mercola’s detail and explanations of how we have been mislead about fat and what is actually healthy. I highly recommend this book for anyone concerned about their health. I especially like how he covers metabolic inflexibility and its long term effect on health.”

“Lots of babble and very little useful information.”

“Very informative resource for people who are interested in fasting and how that can partner with a Keto diet. This book was full of information, but is pretty dry to read and a lot of the medical terms were intimating and overwhelming. The chapters on exactly how to fast safey were the best and worth the read just for that.”

Bottom Line

The Bottom Line on KetoFast

KetoFast is an interesting read. Joseph Mercola has a unique perspective on dieting and using food to boost your health. Is it the revolutionary diet approach you’ve been waiting for? Probably not. There is no clinical evidence to support the claims made in this book.

Dieting doesn’t have to mean giving up everything you love. The most successful weight loss programs focus on moderation. Eating a balanced diet and exercising regularly will help you lose weight.

One product we’re impressed with is Noom. Some of the tools provided by Noom include one-on-one human coaching and a personalized weight-loss plan that’s tailored to your goals and needs.

The company behind Noom knows its product works. They don’t have to use any gimmicks to sell this program. You can access a free trial offer to try it for yourself.

Learn More About Noom »
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Is KetoFast for weight loss or testosterone boosting?

The KetoFast book can help you with weight loss strategy.

What are the KetoFast ingredients?

KetoFast has no ingredients, it is a book.

Are there KetoFast side effects to know about?

The side effects come from a low carbohydrate diet. These include:

  • Fatigue
  • Mood swings
  • Muscle aches
  • Dehydration
  • Bad Breath
  • “Keto Flu”
  • Frequent Urination
Did you find any KetoFast product warnings?

We did not find any product warnings.

Is KetoFast for men or women?

KetoFast is for both men and women.

Where can I buy KetoFast?

KetoFast can be purchased using their Official Site.

Where can I buy KetoFast?

KetoFast can be purchased on Amazon.com and through other book retailers.

Is there a KetoFast free trial or free samples?

There are no free samples or free trials available for KetoFast.

What is the most common KetoFast complaint?

The biggest complaint against KetoFast is that it promotes a ketogenic diet. Researchers at Harvard found that a ketogenic diet can cause kidney problems, nutrient deficiencies, liver problems, mood swings, confusion and constipation.

1 KetoFast Reviews

  • Hildy Neilson

    I took 2 pills with lots of water after supper. I did not sleep so wondered if it should be taken in the morning. After searching several web sites I could find no instructions regarding time of day to take pills.

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