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The GM diet stands for the General Motors diet, a 7-day weight-loss program touted as an exclusive plan developed for 1980s General Motors employees with the blessing of the U.S. Food and Drug Administration, the U.S. Department of Agriculture and the Johns Hopkins Research Center. However, as "New York Times" writer Roger Cohen discovered, General Motors denies any connection with the diet.

The GM Diet works by only allowing users to eat certain foods on each 7 days of the week. The theory behind this 7 day plan is that the food eaten burns more calories than they give to the body in caloric value. Basically it is designed to cleanse and detoxify your body and make you lose weight quickly.

GM Diet Basic Principal
- Focus is on high fiber foods. 
- Lower amounts of Protein, Fat and Carbohydrates.

How Does The GM Diet Work?
- The GM Diet works by only allowing users certain foods on each day of the week. 
- The foods are high in fiber and low in protein fat and carbohydrates which leads to quick weight loss (muscle, fat and water loss). 
- Each day you are allowed 6 meals, breakfast, lunch and dinner and 3 snacks between.

GM Diet Chart
Day- 1 
- Any number of fruits (no bananas) 
- Pure Water (Avoid Juices) 

Day- 2 
- Raw or cooked vegetables 
- Baked potatoes 
- Pure Water (Avoid Juices) 

- Unlimited amount of fruits (no bananas) 
- Raw or cooked vegetables (no potatoes) 
- Pure Water (Avoid Juices)

- 3 glasses of milk 
- 8 bananas 
- GM Soup
- Pure Water (Avoid Juices) 

- Tomatoes
- Lean meat or Brown rice 
- Pure Water (Avoid Juices) 

- GM Soup
- Raw or cooked vegetables 
- Lean Meat or Brown rice 
- Pure Water (Avoid Juices)

- Brown rice
- Fruit juice 
- Raw or cooked vegetables 
- Pure Water

Here are the side effects of GM diet.

The biggest problem with GM diet is that you don’t get enough protein.

GM diet is extremely low in protein. Protein is one of the basic building blocks of the human body. Muscle, hair, skin, and connective tissue are mainly made up of protein. It helps your muscles repair and recover. It helps fill you up. You won’t feel hungry for long time. It also helps you get ‘flawless’ skin and ‘healthy’ hair.

According to United States Department of Agriculture (USDA)’s RDA for protein, you should take in 0.8 grams of protein per kg of your bodyweight in a day. If your bodyweight is 60 kg, you need 48 grams (60kg X 0.8) of protein per day. If you are doing strength training, you can take up to 1.5 grams of protein per kg of your bodyweight per day.

GM diet = Muscle Loss + Muscle Weakness + Water Loss + Fat Loss + Hair Loss + Dull Skin

The GM Diet works by only allowing users certain foods on each day of the week. The foods are high in fiber and low in protein, fat and carbohydrates, which leads to quick weight loss (muscle, fat and water loss). During the 7 days of the plan, the muscle tissues are deprived of adequate amounts of proteins which lead to muscle weakness, muscle loss, dull skin and hair loss. Plus, it is very strict and rigid diet so it is not enjoyable and sustainable. 

GM diet decreases your fitness level and deteriorates performance.

The program does not encourage regular exercise. Plus it causes muscle loss and general weakness because you are not allowed to eat whole grains, meat, sea food, dairy products and other protein rich foods.  All of these foods contain nutrients that can contribute to a lower risk of chronic medical problems such as cancer, heart disease and osteoporosis.

GM diet makes you look old and unattractive. It makes you feel energy less.

If you stop eating enough protein, your body will start to break down muscle for its needs within a day or so and you will lose muscle mass very fast. It is also very low in carbohydrates. Carbohydrate is your body's fuel. Low Carb Diet = Low Energy Levels

Gm diet may cause metabolic slowdown.

It restricts your food choices dramatically. Since you don't get enough protein from GM diet, it cause muscle loss. Muscle loss = slow metabolism. If your metabolism is slow, you gain weight very fast. 

You will probably gain more fat once you return to your regular eating habits.

Since GM diet hurts your metabolism and makes it slow, you gain weight very fast. Even if you lose weight by strictly following the seven-day plan, you will probably gain more weight once you return to your regular eating habits.

GM diet is NOT good for you.

The UK’s national food guide, the eatwell plate, defines the government’s advice on a healthy balance diet. According to the eatwell plate, a healthy balanced diet should include the following.

- Fruit and vegetables: 33%
- Bread, rice, potatoes pasta and other starchy foods: 33%
- Milk and other dairy products : 15%
- Meat, fish, egg, beans and other non-diary sources of protein: 12%
- Foods and drinks high in fat or sugar: 7%

Sapna Vyas Patel’s way to lose fat = Strength Training + Cardio + Healthy Balanced (High Protein) Diet + At Least 8 Hours Sleep + Stress Management

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Written by Sapna Vyas Patel , PhD in Nutrition Science and Dietetics
Sapna writes simple, easy to understand articles that are based on pure scientific evidence. She is one of the most popular fitness professionals in India and is followed on social media by fitness enthusiasts, nutritionists, dieticians, doctors, trainers, and professionals.

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