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KetoFast Review: Is KetoFast By Dr. Mercola Worth Buying?

KetoFast Review - MySexyHealth


Fasting is certainly one of the most profound health rediscoveries of our time to awaken the healing physician inside every one of us. This is one tradition that has been practiced for thousands of years, and virtually every major religion on the planet adopts it in some way, form, or shape.

However, popular figures like Plato, Hippocrates, Mark Twain, Benjamin Franklin, Phillippus Paracelsus, and Mahatma Gandhi used this secret to regain and preserve their health.

In the United States, it started around the 1800s with the national hygiene movement. In the 1900s, it was popularized by alternative medicine advocate Herbert Shelton.

Interestingly, many of us believe that food is medicine. But at the same time, the act of routinely staying without food for a period of time is one of the best medicines that you can give your body.

From improving your metabolic health to helping you sleep better, regular cyclical fasts hold tremendous benefits that you can’t afford not to enjoy. And of course, you should already know that it’s a great way to also lose weight and get into the best shape of your life.

Personally, I love combining Intermittent fasting with the Ketogenic diet for best results. That’s why I got Dr. Mercola’s book to help me gather more insights on how the Keto + Fasting works and how to maximize its benefits.

So in this in-depth KetoFast review, I’ll be sharing with you everything you need to know about Dr. Mercola’s book, which will ultimately help you to decide on whether or not you’d like to also get the book.

Recommended: Check out this Keto supplement. Perfect for Keto Fasting.

Product Summary

Product Name

KetoFast By Dr. Joseph Mercola

Product type/niche

Health, Fitness & Dieting

Reviews (on Amazon)

4.2 out of 5 stars (from 521 ratings)


Kindle, Audiobook, Hardcover, & Paperback.


$11.99 (kindle), $11.93 (hardcover) & $16.99 (Paperback).


Currently on Amazon

Where to buy

Overview of KetoFast By Dr. Joseph Mercola

ketofast book cover - MySexyHealth

In KetoFast, Dr. Joseph Mercola dives deep into the implementation of a cyclical ketogenic diet and intermittent fasting, and makes several recommendations on how best to optimize this programme.

In addition, the term “KetoFast” was used by the author to differentiate this method of fasting from other kinds of fasting. According to Dr. Mercola, the emphasis of implementing a KetoFast programme is to maximize the production of ketone whilst also minimizing muscle loss.

Lastly, the book touches on a lot of fundamentals of the keto diet and intermittent fasting and shares a number of recommendations for getting the most results from this programme. One of the recommendations shared in the book is the idea of not taking food at least 3 hours before you sleep.

Some of my takeaways from the book are:

I. Avoid taking food in the last 3 hours before going to bed. You are only allowed to hydrate yourself, but don’t take any food or even snacks. The author mentions a lot of scientific studies that backs up why this rule is one of the most important steps to improving your health and overall wellbeing.

II. Don’t go on a prolonged calorie restriction programme or a long-term keto diet. The author recommends the idea of introducing healthy interruptions into your fasting/dieting cycles. The idea is to ensure that your body doesn’t shift into starvation mode, which might slow down your metabolism.

III. Why you should practice regular one-day fasts to help you burn fat fast and detox, while freeing yourself from unhealthy food cravings and minimizing potential side effects.

IV. The practical ways of monitoring your progress with lab tests.

Bonus: KetoFast Cookbook

The KetoFast book comes with a bonus recipe book called the KetoFast Cookbook which was co-authored by the famous Australian chef Pete Evans. The cookbook contains recipes which provide between 300 to 600 calories per day.

Finally, what I love the most about the cookbook is that the recipes were carefully selected helped me maintain a high level of satiety (fullness) during the day, while also support my detoxification. And lastly, I didn’t experience any serious side effects while ketofasting.

Who is Dr. Joseph Mercola?

Dr. Joseph Mercola - KetoFast Review
Dr. Joe Mercola

Dr. Mercola is a board-certified family physician that has treated 25,000 patients from around the world. He encourages and educates people about safe and inexpensive nutritional, lifestyle and exercise options to radically reduce their risk of dying prematurely from dangerous drugs and surgeries.

He is also the founder of which has been the most visited natural health site in the world.

Dr Mercola interviewed on Dr. Oz Show -KetoFast Review
Dr. Joe on The Dr. Oz Show.

A New York Times bestselling author, he has also appeared on national news media such as CNN, Fox News, ABC News, Today, CBS’s Washington Unplugged, and The Dr. Oz Show.

How to buy the KetoFast Book

KetoFast can only be purchased on Amazon.  You can pick from any of the following formats:

1. Buy Kindle version on Amazon: $11.99

2. Audiobook: Free with Audible trial

3. Buy Hardcover on Amazon: $11.92

4. Buy Paperback on Amazon: $16.99

Editorial Reviews of KetoFast

“KetoFast combines the insulin-lowering effect of the ketogenic diet with the time-tested healing power of fasting.” — Jason Fung, M.D. , author of The Complete Guide to Fasting and The Obesity Code

“As the science underlying ketosis and fasting progresses, you can always trust Dr. Joseph Mercola to be on the cutting edge! Follow this enjoyable read to do keto and fasting the right way, and avoid the common pitfalls, many of which will shock you.” — Steven R. Gundry, M.D., New York Times best-selling author of The Plant Paradox Series

“Dr. Mercola has done it again. Tapping into the latest research on fasting and ketogenic diets, he has crafted an easy-to-understand, efficient, and highly effective program that can deliver life-changing results.” — Mark Sisson, author of the New York Times bestseller Keto Reset Diet and founder of Primal Kitchen foods

“KetoFast provides a well-researched, practical approach to safely produce the metabolic flexibility needed to improve health and free a person from obesity, diabetes, and other disorders of metabolism.” — Michael T. Murray, N.D., co-author of The Encyclopedia of Natural Medicine.

“It’s sobering to think that the simple timing and composition of our food could, if broadly adopted, change the course of millions of lives. KetoFast is a practical guide to reclaiming your metabolic health.” — Travis Christofferson, author of Tripping Over the Truth: How the Metabolic Theory of Cancer Is Overturning One of Medicine’s Most Entrenched Paradigms.

“KetoFast provides a carefully considered program of fasting and feeding that, based on recent research, should optimize your metabolic health.” — Aaron Davidson, creator of Cronometer.

“With the introduction of intermittent fasting and the current medical research proving its efficacy, a whole new spectrum of healing is now available… Highly recommended.” — Jim Ehmke, clinical nutritionist.

KetoFast Review -Final Verdict

In the last decade alone, there have been countless scientific studies that have established the remarkable benefits of fasting. However, it’s important to remember that there is no perfect approach to fasting.

There are several methods and strategies out there which are usually based on people’s personal preference, health situation, and intended goals.

That said, I have implemented several fasting program and I can confidently boast of Dr. Mercola’s KetoFast program.

I experimented with his partial fasting regimen for 3 months. Throughout this period, I was able to stay in ketosis and I noticed a lot of improvement in my metabolic health, and my focus level was unbelievably high.

If you’re looking for a good fasting program that works well with your keto diet, I strongly recommend that you check out Dr. Mercola’s book on Amazon.

That’s all for now. Thanks for reading and I hope you enjoyed this KetoFast review.

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