8 Hour Diet Review

Founded by David Zinczenko in 2012, the 8-hour diet is based around the idea of intermittent fasting for 16-hours, and letting your body eat meals for the remaining 8 hours of a day. There are absolutely no food restrictions on this “diet” but if you gorge on junk food you must immediately start fasting for the next 16 hours. This diet already does not support healthy habits eating, nor does it promote exercise of any kind. I already see terrible habits forming which can lead down dangerous paths of nutritious related health hazards such as diabetes, heart disease, and much more. However, they quote, “Fasting is, of course, an ancient spiritual and health practice, but it's also a way to sidestep many of the ills of the modern world―including diabetes, heart disease, and cognitive impairment.” Ironic? I think not.*

On their website, they advertise that a person can lose an unreasonable amount of weight per week following the 16/8 rule no matter what they are eating. They also advertise that this 16/8 diet only has to be followed 3-times a week to see results. While this is a bold claim, it is not seeking out the health of the individual instead they focus on a number on the scale. There was no support e-mail or number to call when inquiring about questions of the program. The total cost for the 8-Hour Diet book is $26.99 plus $6.99 for shipping.

Do Dieters Lose Weight On The 8 Hour Diet?

After looking at the 8-Hour Diet book testimonials you would think this book is pure magic. The reviews are so one sided and cheesy, it is almost like they were purchased. I went to another site to get a read on some genuine testimonials from customers who have actually read the book, and tried the diet. Many people said the book was informative, but there were red flags when the quote “you can eat whatever you want” kept coming up.* This is not a true statement, as there are many foods that can be detrimental to your health long term if you eat whatever you want for however long you want. David Zinczenko also claims that you should incorporate low fat products in your diet, but we all know that the “low fat” symbols on processed food boxes just mean “higher added sugars” which turn into fat anyway!*

All in all, the general consensus was mixed, as there were many people who said they did not gain weight, nor did they lose weight. None of them felt that the book contributed to their overall lifestyle health, as no bad foods were being taken away from their diets. While the concept seems enticing, in order to become healthier you have to eliminate the bad out. With the bold claims all over their “scam style” website I would not recommend this book to anyone, as it has not been backed up by science. Nowhere on the website does it mention medical trials, health trials, or clinical trials behind its empty claims.

Is The 8 Hour Diet Easy To Follow?

The whole idea of the book comes from the times of day you are eating. As long as you know how to tell time, this program is easy to follow. After all, you could snack on Twinkies, ice cream, and soda pop all day long (as long as you are within your 8 hour clock) and they claim you will lose weight. I think this book is way too good to be true. The hardest part about the whole thing would be to actually “read” the book, and to lose money once it does not work for you. While many would say, “if you are looking to diet you would not eat unhealthy snacks anyway” they are terribly wrong, as many people don’t have the self-discipline to take the addictive foods away if they don’t have to. Long-term weight management is about finding healthy times of the day to eat nutritious snacks, and meals without getting bored.*

While the authors promote healthy food in their book, it is really up to the customer how they want to go about the diet program. Just like any diet program, it lures people in on empty promises especially because we are such a “quick fix” society.


This diet book is sold on Amazon, and their personal website promotes quick weight loss, while eating whatever you want. This book may work for some people, but the way they market the message screams, “scam” to me. While intermittent fasting to an extent has been known to help the body process food more efficiently, it is important to be giving your body wholesome nutrition to process in the first place. The authors were not off on a bad track, but they tried to market freedom of food, whether good or bad when speaking about one’s health. This in itself does not seem like a good process to follow. This company is simply a book, and nothing more. They do not have a support system, social media sites, or genuine testimonials on their website. Do with it as you may, but I am saving my money and time from this scam of a book.

*Please keep in mind that with any diet or weight loss program, individual results will vary.

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*Individual results will vary.