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Fit for Life Mass Market Paperback – February 1, 1987

4.5 out of 5 stars 2,147 ratings

Nutrition specialists Harvey and Marilyn Diamond prove that it's not only what we eat, but also when and how that keep us trim and healthy. America's #1 health and diet book.
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Editorial Reviews

Amazon.com Review

"It is not only what you eat that makes the difference, but also of extreme importance is when you eat it and in what combinations," say Harvey and Marilyn Diamond, authors of this classic bestseller. Their program results in eating balanced, nutritious, high-fiber foods, making dieting "unnecessary and as obsolete as sealing wax."

The Diamonds explain that body functions have a daily cycle: noon to 8 p.m.-- appropriation (eating and digestion); 8 p.m. to 4 a.m.--assimilation (absorption and use); 4 a.m. to noon--elimination (of body wastes and food debris). Fit for Life aims to return you to a lifestyle based on your natural body cycles. That means 70 percent of your diet should be "high-water-content foods"--fruits and vegetables--which facilitate all body functions. Consume nothing but fruit or fruit juice until noon, then eat salad and vegetables with every meal for the rest of the day.

Two-thirds of the book is explanation and discussion; one-third is menu plans and recipes. You won't be hungry, your food choices will be healthy, and you'll lose weight without dieting. --Joan Price

Product details

  • Publisher ‏ : ‎ Warner Books, Inc.; Reissue edition (February 1, 1987)
  • Language ‏ : ‎ English
  • Mass Market Paperback ‏ : ‎ 316 pages
  • ISBN-10 ‏ : ‎ 0446300152
  • ISBN-13 ‏ : ‎ 978-0446300155
  • Item Weight ‏ : ‎ 6.4 ounces
  • Dimensions ‏ : ‎ 4.25 x 1 x 6.75 inches
  • Customer Reviews:
    4.5 out of 5 stars 2,147 ratings

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Customer reviews

4.5 out of 5 stars
2,147 global ratings

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Customers say

Customers find this book very informative, teaching them how to eat correctly, and say it beats other diets they've tried. The book is easy to understand, and customers report significant weight loss and increased energy levels. They feel great after following the advice, with one customer noting a 70% reduction in bloating. While some customers find the content a bit dated, the book receives positive feedback overall.

AI-generated from the text of customer reviews

140 customers mention "Information quality"136 positive4 negative

Customers find the book very informative, teaching them how to eat correctly and providing a complete guide to health, with one customer noting how it helped them choose the right foods.

"...This overall eating formula aims to promote digestive health as well as aid effective weight loss - and it works!..." Read more

"To assist me with recipe to eat well. It worked in helping me choose the right things to eat and not over eat...." Read more

"...read throughout this book and will re read it again because it taught me so much...." Read more

"I am glad I bought this book. The principles of eating have given me concrete guidance. It’s not complicated and I’m seeing results." Read more

58 customers mention "Diet"52 positive6 negative

Customers find the diet plan effective, saying it beats other diets they've tried and helps them eat more fruits and vegetables while never feeling hungry.

"...advocates that fruits be consumed on an empty stomach, best for breakfast in any amount till satisfied up till noon...." Read more

"...difference it made in my life however was to make me really enjoy vegetables and salads for the first time in my life...." Read more

"...workout and read and focus and work, no mood swings, no gas, no digestive distress AND most importantly, i have been monitoring my sugar levels and..." Read more

"...concetrated food etc my bloating reducer more than 70%, constipation is much much less and energy much more. Thanks for writing this book !" Read more

46 customers mention "Ease of reading"46 positive0 negative

Customers find the book easy to understand and doable, with clear explanations of both "how to" and "why" aspects.

"...It’s not complicated and I’m seeing results." Read more

"...The book is an informative, simple, and straightforward guide to healthy eating. I enjoyed the content of the book (via audible)...." Read more

"...I ordered 5 copies. One for each of my children. Great "how to" and "why"." Read more

"...while some things will just jump out and be easily incorporated in your daily life, with quick results...." Read more

35 customers mention "Weight loss"35 positive0 negative

Customers report significant weight loss success with this book, with some losing up to 23 pounds, and one noting a 70% reduction in bloating.

"...eating formula aims to promote digestive health as well as aid effective weight loss - and it works!..." Read more

"...It worked in helping me choose the right things to eat and not over eat. 23lbs lighter for reading and using recipes." Read more

"...meals, dont combine more than one concetrated food etc my bloating reducer more than 70%, constipation is much much less and energy much more...." Read more

"...habits about a year ago and really felt fantastic and lost 10 kilos quite quickly, but this style of eating GIVES me more energy...." Read more

16 customers mention "Fit for life"16 positive0 negative

Customers find the book positive, with one noting it is clearly written and another mentioning it includes recipes.

"...Fit for life is probably good for some, but maybe not for people who are insulin resistant, or on the verge of it, as this diet is high carbs...." Read more

"The book Fit for life, I tried it for awhile, deperate to be able to not feel hungry all the time like on other diets...." Read more

"Fit For Life has changed my life. I love it. So easy and so simple...." Read more

"Fit for Life is clearly written with scientific data to support their program...." Read more

15 customers mention "Energy level"15 positive0 negative

Customers report having more energy after reading the book, with one mentioning it provides the necessary energy for cleansing and another noting they can work out and read at the same time.

"...carbs from fruits are in absorbable form and provides the required energy for the cleansing (waste mgmt) cycle in the morning - when excretion best..." Read more

"...espoused in "Fit for Life" and Tony Robbins group I noticed a big shift in energy. I was almost restless at times with so much!..." Read more

"...no more craving, no more snacking, have a lot of energy to workout and read and focus and work, no mood swings, no gas, no digestive distress AND..." Read more

"...reducer more than 70%, constipation is much much less and energy much more. Thanks for writing this book !" Read more

12 customers mention "Feel good"12 positive0 negative

Customers report feeling great after using the book, with one experiencing a significant decrease in pain and another noting no stomach issues.

"...after discovering this book I decided to give up meat, it was completely painless because I already knew how delicious and satisfying vegetarian..." Read more

"...Adding the protein and fat from the nut made an astronomical difference in how i felt..." Read more

"...I have a significant decrease in pain and increase in energy..." Read more

"...No bloating, no stomach issues, no acid reflux, no constipation, no gassiness, no digestive problems...." Read more

8 customers mention "Dated content"4 positive4 negative

Customers have mixed opinions about the book's content, with some finding it a bit dated.

"...is never out of date...." Read more

"I think the first half of the book is severely dated, the general ideas seemed fine but the presentation was a little over the top...." Read more

"...The information is as relevant, and up to date as the first publication in 1987." Read more

"...The one I received was an older version and had a different cover." Read more

Must read to start health journey
4 out of 5 stars
Must read to start health journey
I am glad I bought this book. The principles of eating have given me concrete guidance. It’s not complicated and I’m seeing results.
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Top reviews from the United States

  • Reviewed in the United States on November 9, 2011
    Principles herein can't be more contrary to today's conventional meal but which, if adhered to, brings great rewards for those who suffer frequent indigestion.

    Spoken from personal experience as well as hvg witnessed a business associate get healthy over an 18mth project.

    The book theorises that the body undergoes 3 major phases of food processing through a 24hour day. Phase 1 - Eating & Digestion (12noon-8pm); Phase 2 - Absorption (8pm-4am); and Phase 3 - Excretion (4am-12noon).

    The author categorizes food into 3 categories: 1) carbohydate, 2) protein and 3) vegetables and advocates that food be consumed in compatible category combinations that would result in optimal digestion. For example, it maintains that proteins and carbohydrates should never be consumed together as the enzymes secreted to digest the respective classes tended to cancel out each other's digestive powers, neutralising the acidity/ alkalinity of the enzymes. As a result of which slows digestion, lengthening the time poorly digested food spends in the stomach. Nutrient absorption is impaired, and food would end up sitting in the digestive tract longer than it should, exposing it to a higher incidence of putrefication whenever it encounters sugary substances (desserts after a meal is a bad idea). This contributes to rapid putrefication - imagine foul odious sludge & gas sitting in one's intestines, going no where and the resulting emissions!. Rather - the aim is to maximise digestion and absorption and waste material expelled in the shortest possible time.

    RATHER than carbs as the common food staple, theory advocates treating vegetables as the staple (common food) to be taken together with proteins and then separately in a different meal with carbs. Importantly, Diamond advocates that fruits be consumed on an empty stomach, best for breakfast in any amount till satisfied up till noon. The rationale here is to avoid diverting fresh energy from the previous night's good sleep to digesting a heavy meal, preferring rather to channel the available energy to the day's morning pursuits. Simple carbs from fruits are in absorbable form and provides the required energy for the cleansing (waste mgmt) cycle in the morning - when excretion best take place. A logical deduction from here then is for carbs & vegetables to be eaten at lunch - hence allowing the energy it generates to be used through the afternoon (rather than stored overnight). Proteins & vegetables otoh, is best consumed at night to resource muscle repair & recovery after the day's pursuits.

    This overall eating formula aims to promote digestive health as well as aid effective weight loss - and it works! Caution though that what works for one may not work or be redundant for another. Hence listen to your own body. It's a gem for me.
    232 people found this helpful
    Report
  • Reviewed in the United States on November 8, 2024
    To assist me with recipe to eat well. It worked in helping me choose the right things to eat and not over eat.
    23lbs lighter for reading and using recipes.
    4 people found this helpful
    Report
  • Reviewed in the United States on December 12, 2024
    I have read throughout this book and will re read it again because it taught me so much. I have bought this book 3 other times as a gift for friend and family.
  • Reviewed in the United States on July 28, 2024
    I am glad I bought this book.
    The principles of eating have given me concrete guidance.
    It’s not complicated and I’m seeing results.
    Customer image
    4.0 out of 5 stars
    Must read to start health journey

    Reviewed in the United States on July 28, 2024
    I am glad I bought this book.
    The principles of eating have given me concrete guidance.
    It’s not complicated and I’m seeing results.
    Images in this review
    Customer imageCustomer imageCustomer image
    One person found this helpful
    Report
  • Reviewed in the United States on December 24, 2023
    I bought this book in the late 80's as a weight-loss book, and it does definitely work that way if you follow its directions. The most lasting and valuable difference it made in my life however was to make me really enjoy vegetables and salads for the first time in my life. Growing up in the 1960's, vegetables and salads were sad dutiful little side dishes. But if you follow the meal plans in Fit for Life, you will be, well, full of vegetables. Your body will then begin to crave them, crave that feeling of well-being that comes from eating a lot of them.

    But the reason this works for so many people is, the vegetables as prepared in this book taste incredibly good. Marilyn Diamond was already a skilled and enthusiastic cook before meeting Harry, and she brought her culinary talents to the challenge of making vegetables yummy. She succeeded magnificently. My only problem with the recipes is the same one I have with most recipes: I can't prepare them nearly as quickly as the time estimates provided for doing so. It's a lot of cooking time and I don't even like to cook. I'm willing to do it though because I'm convinced I feel better eating this way and it does taste so good.

    When 15 years after discovering this book I decided to give up meat, it was completely painless because I already knew how delicious and satisfying vegetarian cooking can be. Most although not all of the recipes in the book are indeed vegetarian, although some aren't so you can kind of phase in.

    Strongly recommended, for healtys and thoroughly enjoyable eating!
    23 people found this helpful
    Report

Top reviews from other countries

Translate all reviews to English
  • .Marcelo Furtado
    4.0 out of 5 stars Alimentação de forma correta
    Reviewed in Brazil on October 21, 2019
    Aprendizado alimentar
    Report
  • Wendela Persson
    5.0 out of 5 stars Amazing
    Reviewed in Sweden on November 3, 2023
    Love this read
  • Patricia Rincon Gallardo
    5.0 out of 5 stars Muy bueno
    Reviewed in Mexico on May 28, 2021
    Todo muy bien
  • I think you’d have to be a size 6 to comfortably strap this on. Going straight in the bin 🤬
    5.0 out of 5 stars Must read!!
    Reviewed in the United Kingdom on May 7, 2024
    This book and all in the series are a game changer.
    Buy them all.
    Buy a juicer.
    And watch the changes happen.
  • ardien jansen
    5.0 out of 5 stars Pour une mode de vie sain et respectueux.
    Reviewed in France on March 24, 2013
    Fit For Live

    Le livre est très instructif et très clair, facile et un peu amusant à lire.
    Nous avons tout de suite commencé le style de vie recommendé par l'auteur, comme celui corespondait déjà beaucoup avec le notre!
    L'auteur te fait voir common beaucoup de ses récommandations font sens.
    Le livre est écrit c'est trente ans et est encore toujours actuel.

    Pour ceux qui cherchent à maigrir il dit -arrète tous les régimes qui ne tiennent pas après qu'on les à finit; maigrir, c'est une mode de vie, a life style!!

    ardien jansen