One of the most curious diets that I’ve had the chance to review, the General Motors diet is a 7 day eating plan which is supposed to help you lose a massive amount of weight.
The diet is supposed to have been developed by General Motors in the 1980′s to be used by its workers and their families. Rumor has it that the diet was developed with a special grant from the US Department of Agriculture and the FDA and was tested by Johns Hopkins University.
However, it seems that the origin of the GM diet is based more on rumor than on fact as this NY times article showed. When asked about the diet, a spokesperson for GM replied that they had no idea where it came from. However, the name is likely to stick for a long time. After all, it has been this way for over 20 years.
How does the General Motors diet plan Work?
The 7 day GM diet works in the following way:
Rule #1 – You have to abstain from alcohol.
Rule #2 – You need to drink 10-15 glasses of water each and every day.
Rule #3 – You can supplement your 7 day diet with this GM soup: 28 oz, Water, 6 Large Onions, 2 Green Peppers, Whole Tomatoes (fresh or canned), 1
Rule #4 – You can have these drinks along with your diet:
- Water (flavoured with lemon/lime if desired).
- Club Soda.
- Plain Black Coffee. No cream or cream substitutes are allowed as are sugar or sweeteners.
- Black Tea. Again, without sugar.
- The fruit juices of day 7. No fruit juices before day 7.
Here is your 7 day eating plan:
Day One All fruits except bananas. You can have as many fruits as you like. The most recommended ones are melon and cantaloupe. This day prepares your body for the rest of the days.
Day Two Vegetable day. You can eat as many raw or cooked vegetables as you like. It is best to avoid dressing entirely or stick to lemon juice. For breakfast, you need to eat a large baked potato which may be flavored with one pat of butter.
Day Three Any fruit and veggies that you like except bananas.
Day Four Bananas and milk day. You can eat as many as 8 bananas and have up to 3 tall glasses of milk.
You may also have the GM soup. By this day, your sugar cravings should be dramatically reduced.
Day Five is all about beef and tomatoes. Eat two 10 oz. portions of lean beef in the form of steak or burger. You must eat 6 whole tomatoes and drink one more quart of water. The water will help you purify your body from within
Day Six Eat as much beef and vegetables as you like. According to the diet, by day 6 you should have lost a considerable amount of weight.
Day Seven On this day you can eat brown rice and vegetables, and drink juice fruits.
You may do the diet as many times as you like, but I recommend taking 3-7 days break between each cycle.
General Motors Diet Plan Pros and Cons
Pros:
- This is a free diet plan.
- The food is cheap and affordable
- Easy to understand and followHead Cabbage, 1 Bunch Celery, 4 Envelopes Lipton Onion Soup Mix, Herbs and Flavoring as desired. This soup can be eaten as often as you like whenever you like.
Cons:
- No exercise included
- Severely restricts your nutrition and may not give you all the nutrients your body needs to function.
- Has no support system whatsoever
- The origin of the diet is unclear as is the reasons why it’s supposed to work
- Unlikely to produce long term weight loss
- May cause metabolic slowdown
To learn more about healthy eating for weight loss check out this video about the 4 Foods You Must NEVER Eat
In Conclusion

The General Motors diet may look good on paper but it’s not recommended. This is a diet plan which restricts your food choices dramatically and may cause nutritional deficiencies and metabolic slowdown.
Note: The GM Diet is a variation of the Cabbage Soup Diet
It’s not a lifestyle change eating plan and so it’s unlikely to be a long term solution. For a better and more sustainable diet plan I recommend the Every Other Day Diet plan. You can read more about this diet here: Every Other Day Diet Review. I believe that this a better way to lose weight and to keep it off for years to come than what the GM diet offers.While you may lose a few pounds during your week on the GM diet, this is likely to be mostly water weight. You will probably gain it all back quickly once you go back to eating your regular food.
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{ 80 comments… read them below or add one }
hi…
I am 24 years old. I want to permanently reduce 5-6 kgs. Is this fast weight loss diet helpful, or will I regain the weight again?
Today is my 4th day of diet. Can I take a diet biscuit?
Hey. What can I take in substitue of Banana ?
Hi…2nd day my second day of die. Can I have OATS or GULCOSE or TANG in between meals, whenever I feel hungry? Will it effect diet plan?
My second question is can I have chicken on day 5 and 6…because I never had beef before and I don’t get any near my hostel…is chicken ok? If yes then what’s the quantity allowed?
Thrid question is i took one spoon of rice today just for taste by force of my friends…will it affect the diet….?
.
im gluten free is the soup safe. ? no wheat
Hi I started this diet yesterday… I was going really well but cheated a bit..:( had a pineapple salad with what I believe was mayonnaise dressing.. not much though.. n 1 spoon of mashed potato.. now my question is should I count or start all over. I am not over weight just wanna become fit. I’m 22 years.. 5 feet 2 inches and 52 kgs.
Another question,I’m a vegetarian. so this rice I’m supposed to have on the 4th and 5th day.. can I cook it with spices and a little bit of oil maybe? and the 7th day fruit juice.. can sugar be added? And what if I don’t have the soup at all?
I did this diet and lost 7lb, and it stayed off. very pleased
Yoo,
Can we cook the vegetables in some oil and then have them?
and what if we don’t like tomatoes for the 5th day, any choice for that?
Waiting for the answers. thanks
My GM diet is completed. I lost 2.5 kgs. Today is 8th Day. Is it advisable to start again from the very next day as I am overweight and want to reduce upto 6 to 7 kgs.
Please advice.
Regards
Neha Karakasia
Guys,
They say that GM Diet helps in reducing weight soon and also it increases weight once we stop this,is this true..please help me guys as i am planning to start this diet asap..
shweta
Hi Shweta,
What happens is that this diet isn’t a real change. It’s a short term way to lose weight. What happens after the 7 days elapse is that you need to make a permanent change to maintain your weight.
Hi,
I have a question about GM Diet plan, please help me..
You have suggested to have beef on day 5 and 6,but i am a vegetarian,so please let me know what can i compensate for beef..
thanks and regards,
shweta
you can have one cup of rice.
I am going to start this diet plan to reduce my belly(Tummy). So please tell me it is helpful for the same or not. One more question can I go for light exercise (Cardio exe) while following this plan.
I have just completed the GM diet I stuck to it ridgidly and have lost 1 lb I am at a loss as to why any reasons would be good to know please. At the moment I would not recommend it to anyone. I really wanted it to kick start weight loss and now depression instead of enthusiasum has kicked in RUBBISH
You’re still a pound lighter than last week. Get over it.
I’m on 2nd day, can I use salt in the soup and vegetables. please reply
Are we allowed to eat the soup every day? Cause if not then I screwed up…
Emi
Rule 3 stats soup can be eaten as often as you like whenever you like.
has anyone seen physical results from this diet, i’m doing it now and i want to know if you actually look skinnier after it.
I’m on this diet this is my 6 th day so far I’ve lost only 2 lb
I’m really unhappy with this.
can we eat the soup everyday ?
I am following this diet and I am on my 4th day when I wake up. When – checked my weight on the morning of day 3, I’ve lost 9 lbs so far. =)
Hey Jan,
I was just reading the reviews for some motivation. So you said you lost 9 lbs on day 4, please tell me if you continued the diet and if yes then how much did you lose by day 7. I am very curious to know.
Hey Star,
I just completed the diet and lost 10 lbs total.. start the soup on the 4th day only and add light cardio for say 20 mins everyday as it boosts your metabolism. My skin too looks healthy from all the fruits and salads… I might gain back the 10 lbs but the good thing is I dont crave for food anymore!!! I just cooked a feast for my family on the 5th day of my diet and I was not even tempted to take a spoon of it.. It was suprising since I am a big foodie and need to munch on something always.. so once the craving is gone you can achieve any weight goal.
can i use salt?
can we switch day 4 & 5? so banana and milk on day 5… and steak and tomatoes on day 4? gonna be out all day in meetings
Hi!!!!!!!! I am on the fifth day of the diet. So far I have lost three kgs.Is it good enough. The article says that u will see atleast a reduction of 7 kg or so. Is it still possible
My weight is 136 kg. My question is
while i am going with this diet plan can I walk or take any exercise?
Please don’t exercise… During this Diet…
Just think and concentrate on one thing.
I am on day 5, I went out to a party and took wine.. i am just worried what could happen to me.. should i continue the diet or not and what would happen if you intake alcohol during GM diet..
Hi, I have been on the mayo clinic diet now for ten days and have only lost 5 lbs.. so I am trying to find another diet. Would really love to start this diet but was wondering how should i do it should i do it for 7 days and take days off or keep going please help??
I am 18years old:::
95kgs….
My question is dat
Suppose if I eat only fruits(xcept banana) all 4days,can I reduce more kgs?
Can u pls tell me wat can v replace the beef with?? Since I dnt eat beef?? Pls reply??
Also, Is it some salt free diet? I mean on the day 2, the veggies r cooked without salt??
And my last ques? Is that wonder soup to be eaten or to be prepared like a clear soup??
Pls do guide me??
Thanks!
did u get the answer for salt?
You should avoid salt, too much sodium (salt) is not good for the body when you are on a diet, instead use lemon and pepper for dressing, and for the weight loss while following GM diet walk at least for an hour. Hope this helps
Beef can be replaced by paneer ( Indian name for cottage cheese)
Hi. I’m starting the diet tomorrow but I’m stuck about the milk. I can drink milk and don’t know if I should substitute it for something. Thanks I’n advance
Even I can’t drink milk, so i just made a strawberry shake using milk and sugar.
I am 44 and a 20 year Army veteran. Really didn’t go much for diets until I had to go on one. With this diet and exercise, I lost 9.5 pounds, and two pant sizes. With some modification of this diet and a workout plan, I’m in better shape than I was almost 10 years ago!
Hello my mom and i are starting this today
i am 134 pounds my main thing is i have been exercing and have lost 10 pounds so i don t want to hurt that
if i do this for a week and lose 10 pounds how is the best way to maintain that ? any tips on maintaining the weight loss after the fact?
Hi All,
I am 27 and am about 98 Kgs in weight. I want to go in for this plan. My questions are as below.
1. Can i add salt in all the foods i have everyday?
2. Is this plan bad if done 3 times in a row. I am planning to lose about 6 to 8 Kgs by this month end.
Regards
hi
i am on the 2nd day of my diet, i dint have any soup yet ,can i do this with out drinking the soup,and can i use any amouts of salt with the beef and vegetables
hai
i am taking the gm diet …and i don’t eat beef …
so i want to know what can i take instead of beef
it will b very useful of me ..
pls reply ..
You can eat one cup of rice instead of Beef!!
hey i wanted to ask is it ok if i dont have the soup?will i loose weight anyways??please tell me..
Hi,
You may but the soup is integral to the program.
The soup will give u a lot of energy plus will remove the monotony of eating ….
hey guys
i am 23 and i weigh around 90 kgs … can u pls tell me if i can continue gm diet for two or three consecutive week ???
should i expect good results out of it ?
give a break in between
Is there anyside effects of this diet secondly can we have plain water
or lemon water and last can we include salt in the diet or we have to takeplain vegetables or anything which itsays without anything.plz help .thx a loads innadvance
I did this diet and lost 13 pounds, and I wasn’t even overweight, but I was the heaviest I’ve ever been and it was getting me down. I’m crap at over eating so i needed something with a set out plan.. and this was incredible. people shouted at me, saying it was unhealthy but It made me more energetic and feel fresher if anything, and now I feel much better back to the way I was before. I’d recommend it even though it’s difficult to not cheat, but basically this diet does work, even though it makes people angry. and when they say ‘why the hell do you need to diet’ it just makes me want to say to them ‘if I didn’t diet I’d be a hell of alot bigger than I am, and then you’d ask me why I aren’t dieting’ .. rant over. this diet is good
My weight is 206 lbs and I want to reduce up to 30 lbs. please advice.
vinny, i have a question, you said the diet did wonders for you? could you go into more detail please? also everyone says you regain the weight? is this true. say you do the diet and then continue to make sensible eating choices, would you still regain the weight? also, they say it slows down your metabolism, so does that mean once i stop the diet even if i eat healthily, im doomed? thanks!
natasha
I started the diet last week ..question..for the soup I juiced all my vegetables and heated them and drunk them. Is this not a good thing. Or should I do it the correct way?
Hi I am interested in doing this diet, however I was just curious if the results vary with how much you weigh prior to this diet. If I don’t weigh much does that mean I wont have the same results to someone who weighs more than me?
Hi Nicole,
Usually, the more you have to lose the faster you lose it. At least in the beginning.
hi
i’m on day 3….till now it was gud but i can’t eat 6 tomatos on day5…
plz giv me any other suggesstion…how to eat them….?
I recommend spreading them throughout the day. Each one every 90 minutes or so.
you can puree the tomatoes and have as soups. or you can make rice with the 8 tomatoes puree and cook and eat …
instead of beef, rice can be used, brown or red
hi usha,
its my second of diet..n im not able to eat steamed veggies at al and its already 1:30 pm..can you tell me what if i cook them with some onions with one spoon oil and make a curry of d veggies…please suggest AEAP..
many tell that we lose only water weight and regain it later is it true??
I believe so. This is a very restrictive diet plan
hi,
i have been doing the diest almost 1 week every month. it has good results. to answer some of you:
@Vijay: first three days; you will not notice big difference. you might have slightly bigger billy but by day 4 you will start feeling more fit. i don’t recommend to weight urself before day 5. by day 7; you will notice change in yoru body( handwatch being more loose, your belt hole getting relaxed…) meausre yourself by wearing same pant ( preferred strictch one) daily to notice the difference.
@ Sally: just do it once a month and in the rest of the three weeks; one day you eat normal and the other day focus on salads and grilled repeatedly.
@ Jeff: soup is ok everyday starting day 1 in normal quantities ( 2-3 times a day).
@ ROny: this is related mainly to your body. you can compensate by having Zinc Pills.
regards to all.
Hi!
Need some help!
I have couple of questions. What day onward can I eat the soup? In what quantities and how many times? It says it’s supplementary to the diet so can I take it right from the 1st day? And for vegetables can I use low fat curd/yogurt like riata? Can I use beans like rajma, chole or soya beans as a substitute to beef?
Please help.
Why is this diet bad for long term?
Hi Chelsea,
Because this diet is low in calories and cuts down on some major nutrients it may be good as a short term solution but not as something you can stick to for a long time.
What major nutrients does it cut? I am curious because you eat all the fruits and veggies you want for days 1,2,3. Day 6 and 7 you eat all the veggies you want plus beef and brown rice. Days 4 and 5 seem to be the only days that might effect your nutrient intake, but that also depends on whether or not you eat the soup.
I wish there was an egg white day for protein, but if you eat green leafy veggies you should get the protein there.
Even the article writes about nutrient cut down, but it doesn’t explain which nutrients.
Hi,
i am going to do GM diet..can someone help me how is weight reduction measured on daily basis? how many pounds will be lost on day to basis by this Diet plan?
or will be 10 to 15lbs only by end of week and nothing major changes in between days?
please comment.
Thanks,
Vijay
Hi, I’m 15 years old and weigh 73kg.
I wanna do this diet but I’m not sure if its dangerous since I’m young. Is it?
I would also like to know if after I finish this 1 week program, will I bounce back to my old weight again?
Can I do it for 3 weeks in a row?
Hi, I don’t think this diet is good for teens and I don’t recommend to do it more than once at a time.
i am on day 4 and have lost 9 lbs. my question is can you eat the soup everyday or just on the 4th day
I would like to know the answer to this as well…
I am a 20 year old guy living in India. I weight about 83 kgs and I wanna reduce 5-7 kgs. I think, this diet plan will work for me. I have heard that there can be problems of hair loss or other side effects of this diet plan. Is this true? Does this schedule help you in the long term? Please reply.
I don’t know about hair loss but I believe this is not a good weight loss plan for long term results
No…..! infect,lots of vegetables and fruits will clean your body….bcoz fruits and vegetables
do help to active the dead cells in our body!
Hi Seema,
I followed the GM diet last year and it worked wonders for me. The soup can be prepared to your taste cooked or half cooked whaterver….You just have to stick to the ingridients specified.
It is best to opt for red meat for the Iron and protien. So beef is the best…and yes you can have the beef grilled or you can also go for burgers but pls do not fry. No oil pls.
Doubts doubts doubts….plz smeone help!!!
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I hav started wid da GM diet n today is my 3rd day. I have doubts regarding the soup recipe. Do we just put all da ingridients in water n cook it, is it supposed to be like a veg clear soup with half cooked veggies or can it be fully cooked. Please somene clarify it by today.
.
Secondly can i replace beef wid mutton or if i cant den can i hav beef in ny form i like…fried burger or beef kebab grilled or ccoked wid vegies or beef shami or beef fry
Thirdly is it ok if i dont exercise while on da diet prog, well atleast for these 3 days i couldnt. I might wen i take beef.
1.iam 29 yares old
2.my weight 110 kg
3.my length 168 cm
Hi Ibrahim,
I’m not sure I understand your comment. Do you have a question?