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GM Diet

GM DietSurprisingly there are quite a few people on the internet searching for “GM Diet.” GM Diet stands for General Motors Diet, and it appears to have been circulating among dieters and most recently the internet for some time.

The GM diet is said to be created by General Motors for their employees and dependents. It is supposed to make you lose 10-17 pounds a week, and also cleanse your body.

The GM diet is a short-term 7-day diet that appears to be effective for some people, including a columnist for New York Times who published an article about the GM Diet in 2009.

However, according to this New York Times article, unfortunately the claim that the GM Diet was created by General Motors is an urban myth. Apparently a G.M. spokesman replied, “We’ve concluded it’s an urban myth…..It’s a fairly unconventional diet, and in the 1980s G.M. was the most conventional of companies.”

Nonetheless, this diet has taken a life of its own and is being tried by many dieters around the world.

The GM Diet Menu

The GM Diet is a 7-day diet that supposedly can be repeated as necessary. See below for what you can eat on the GM diet.

Day 1

GM Diet - Fruits

  • 10 glasses of water
  • Unlimited fruits except bananas
  • As much Wonder Soup* as you like

Watermelons and melons are recommended for maximum weight loss

Day 2

  • 10 glasses of water
  • Large baked potato with butter for breakfast
  • Unlimited vegetables (raw or cooked)
  • As much Wonder Soup* as you like 

Day 3

  • 10 glasses of water
  • Unlimited fruits except bananas
  • Unlimited vegetables except potatoes (raw or cooked)
  • As much Wonder Soup* as you like 

Day 4

GM Diet - Bananas

  • 10 glasses of water
  • Up to 8 bananas
  • Up to 3 glasses of milk
  • As much Wonder Soup* as you like 

Day 5

  • 12 glasses of water
  • Up to 20 oz of lean beef (including beef patties)
  • 6 whole tomatoes
  • As much Wonder Soup* as you like 

Day 6

GM Diet - Steak and Salad

  • 10 glasses of water
  • Unlimited beef
  • Unlimited vegetables
  • As much Wonder Soup* as you like 

Day 7

  • 10 glasses of water
  • Brown rice
  • Fruit juices
  • Unlimited vegetables
  • As much Wonder Soup* as you like 

Sparkling water, black coffee and black tea are also allowed while on the 7-day program.
A small quantity of vinegar and oil can be used in salads.

*GM Diet Wonder Soup Recipe


28 oz water
6 large onions
2 green peppers
Several whole tomatoes (fresh or canned)
1 head cabbage
1 bunch celery
4 envelope bags of Lipton Onion Soup Mix
Any herb
Any flavoring

Note: For the vegetables, you can replace with or add other non-starchy vegetables.


  1. Put water in a large pot
  2. Cut up all vegetables and put in pot
  3. Add soup mix, any herb and flavoring
  4. Boil water then reduce to low heat
  5. Simmer until all vegetables are to desired tenderness 

Pros of the GM Diet

  • Virtually eliminates junk foods, processed foods and added sugar.
  • On some days encourages consumption of lots of vegetables.
  • Except for the 7th day, eliminates consumption of all grains.
  • Encourages that you drink lots of water.
  • Appears to work for some people. 

Cons of the GM Diet

  • On some days you may end up eating lots of fruits, and consuming lots of sugar that are in fruits.
  • If you choose sugary fruits or starchy vegetables, you may not experience weight loss.
  • 100% fruit juices are not healthy. 

Should I try the GM Diet?

Overall, this diet seems to be harmless, if you are a healthy adult and if it is done once in a while. It is recommended that you consume organic beef as much as possible. You should not attempt this diet if you have a pre-existing health condition or are generally not feeling strong.

If you decide to repeat the diet, it is recommended that you:

  • Wait at least 1 week before repeating the diet, during which time you should consume healthy oils which appear to be lacking in the diet
  • Limit sugary fruits and fruit juices which can lead to over-consumption of sugar and insulin spikes