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The Fast Diet

The Fast Diet

Lose Weight, Stay Healthy, and Live Longer with the Simple Secret of Intermittent Fasting

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The Fast Diet, written by Dr. Michael Mosley and Mimi Spencer, promotes intermittent fasting as a means for weight loss, optimum health and longevity. In the book, the authors write, "Intermittent fasting can put us back in touch with our human selves. It is a route not only to weight loss, but also to long-term health and well-being."

The book is based on two things: Modern scientific research and the authors' own personal experiences with fasting, especially Dr. Mosley who lost 20 pounds, a high percentage of body fat, and lowered his fasting glucose levels to normal through an intermittent fasting diet.

Mimi Spencer offers practical advice on how to follow an intermittent fasting diet safely and effectively with meal plan options, as well as a female voice of experience in fasting.

The diet is based on a model called the 5:2 diet approach - 5 days of eating normally without any restriction, and 2 days of loose fasting, meaning dieters can have 25% of their normal day's calorie intake - roughly 500 for women, and 700 for men. Those calories should come from lean proteins and vegetables.

The Fast Diet approach claims to yield weight loss, an abundance of health benefits and ultimately, longevity. This is because going without food has been one of the only interventive dietary methods that can prolong life, at least in animals. Similar research is now being done on humans.

Do You Know the Best Diets of 2016?

  • No complicated rules to follow
  • An easy-to-follow strategy
  • Based on scientific research
  • Dieters don't "starve" on any given day
  • Still enjoy the foods you love most of the time
  • Claims to cut longterm risks of diabetes, heart disease, cancer and other serious diseases
  • Includes detailed meal plans
  • Other benefits include a sharpened mind and longterm weight management
  • Not necessarily a "proven" method
  • May not be safe for everyone

The Fast Diet promotes the 5:2 diet approach, meaning dieters eat normally 5 days of the week and restrict their caloric intake to 25% of their daily needs on 2 "fasting days" of his or her choice.

This approach is thought to reconnect our bodies with our "human" nature while also promoting weight loss, optimum health and longevity.

The book includes a month worth of meals in photos, as well as an extensive list of meal plans demonstrating how to follow an intermittent fasting diet safely and effectively.




Based on Dr. Mosley's extensive research and own personal success with intermittent fasting, it seems like a safe enough approach to losing weight.

Although at first glance it may appear the authors are promoting starving to lose weight, they're actually promoting a diet method that keeps our body guessing to promote weight loss.

Also, because dieters restrict their calorie intake to 25% on their fasting days (never going completely without food), this has a tendency to shrink overall appetite, prohibiting dieters from overeating on their 5 normal eating days.This is one more way the diet promotes overall calorie restriction and weight loss.

Though this diet approach may not be safe for everyone, it seems to be a safe enough method for losing weight and living longer. There doesn't seem to be anything fundamentally wrong with The Fast Diet, though more research is still being done to confirm the safety and effectiveness of Dr. Mosley's methods.

Common Misspellings

the fast diet, the fasting diet, the F.A.S.T diet, dr. michael mosely, micheal mosley

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(Page 1 of 1, 6 total comments)

Roy Christopher


I really like the fast diet. I've been on it seven weeks and have lost almost 8 lbs and 2 inches off my waist. I enjoy the fast days because I don't have to think about food. Odd huh?
I'm a snacker and it's nice to know "today I don't snack"
I will stay on this program indefinitely. It works for me.

posted Apr 30th, 2016 5:34 am



I saw the documentary a couple years ago. Dementia runs in the family as well as other issues. I also have not had success on other weight loss plans. Have started the fasting and also FastExercise. Second week and finding it easy. I use a little Garcinia Cambogia for appetite suppression. Feeling good : )

posted Feb 11th, 2015 12:03 am

Marie Nemetz


I have been following the Fast Diet for 9 months and have lost 20 lbs, I have been able to maintain the wgt. Loss and Iam extremely happy with the results. This food plan has been the easiest program I ever participated in.
My lab results are also improved .

posted Apr 22nd, 2014 6:09 pm


I have been on this diet for 12 weeks and have lost 14.6 lbs. I have never felt better. I sometimes do 3 days of 500 calories, as it is very easy and I don't feel hungry.

posted Oct 1st, 2013 5:48 pm



I have been on this diet for 12 weeks and have lost 14.6 lbs. I have never felt better. I sometimes do 3 days of 500 calories, as it is very easy and I don't feel hungry.

posted Oct 1st, 2013 5:46 pm



I have been on this for 4 weeks and have lost 10 lbs. It is surprisingly easy. I am also trying to limit my non-fast day intake to

posted Sep 15th, 2013 2:31 pm


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Related Diets: The FAST Diet, Eat Stop Eat, Fasting Diet

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