What is the least amount of calories I can eat?

Don't be silly !

Can you survive on 600cories a day? Sure. I watch these shows too, 600lbs+ people being put on 800calories a day by medical professionals and dietitians. I also see them struggle and complain over hunger pains and lack of energy. Interesting enough, in the shows I watch I never see medical professionals telling their patients that 600calories is OK though and they strongly advice their patients to eat their daily allowance.

But since you are not 600lbs and under medical supervision I would suggest to eat your MFP's daily allowance and to exercise. There is a good reason why VLCD's is not advertised on these boards.

i eat 2500 i am 175cm and 68kg. 3x 60min hiit and 3x 60min strenght training per week. currently i'm on a diet, 4 days 1850 and 5th day 2500 kcal. my 6 pack is well developing friday i am going for bia and measure my basal calorie rate. its VERY important to do sports AND eat more to not cut down your metabolism!

I'm no dietician, but 600 calories would be dangerous. I know I weigh more than you and if I am only at 1000 calories and hit the complete button I get a warning that I am eating too few calories. MFP is specifically designed, based on your height, weight, activity level, etc to tell you what your calorie intake should be. If you exercise more, you should also consume more calories to compensate for what you burned off. A pretty reliable source advised me that by eating too few calories your body will actually store the fat you have so that it doesn't starve, in fact making you lose weight slower. Just like everything on tv, take it with a grain of salt. Don't starve yourself. That's a slippery slope!

distinctlybeautiful wrote: »

The question I think everyone should be asking is "what's the most I can eat and still achieve my goals?"

I'm eight years older than you and the same height and almost the same weight, and I've been losing slowly on almost 2000 calories a day. I don't assume you're exactly the same as me and should eat the same. I do assume 600 calories a day is very unhealthy.

I would agree with this. And I can tell you from all the time here (on my 7th year), I don't know anyone who achieved any of their fitness goals or body image goals by eating a starvation type diet. I know a lot of women who achieve their goals with reasonable calorie deficits (many are eating 1700-2100 to lose) and solid workout routines (high concentration on resistance based with some added cardio).

Fit/lean bodies strive when there is appropriate nutrition and training.

EAT
SLEEP
LIFT
REPEAT!!

Only six hundred calories a day?

Bad, BAD idea. Don't do it.

idrinkalotofwater wrote: »

Without screwing up my digestive system and everything? People have said 1200 but I've seen grown men on diet makeover shows only eat 1000. If a big man of, like, 300 pounds can eat 1000 calories then surely I can survive on 600?

Details:
Female, 21 years old
5'6
150 lbs

No - 600 is an incredibly bad idea.

Morbidly obese people (on game shows) can eat less because they are morbidly obese PLUS they have medical supervision. They have lots & lots of fat reserves.

People on medical weight loss receive vitamin injections and specialized food to help get the largest percentage of nutrients possible on very low calories. These are not do-it-yourself plans for the slightly overweight.

When we are slightly over weight - loss of lean muscle mass (along with fat).....is a very real possibility.

idrinkalotofwater wrote: »

Without screwing up my digestive system and everything? People have said 1200 but I've seen grown men on diet makeover shows only eat 1000. If a big man of, like, 300 pounds can eat 1000 calories then surely I can survive on 600?

Details:
Female, 21 years old
5'6
150 lbs

Hi
I have been losing anywhere from 1 to 1.5 pounds a week and did that at 1800 calories a day. Now that I have decided to hold this weight for a while before the final push to my goal I have added 300 or so calories a day. That works for me as a male 5'8" That can easily be a Duncan Donut, They have some that are 260 calories and 270 calories such as the French Cruller, Glazed Donut and the 270 Jelly Donut or I can add a couple of pieces of extra fruit to the three a day I do eat.

I would think that at 600 calories You will be cannibalizing muscle tissue ahead of fat.

FWIW I have seen on the Internet that most of the Pounds lost on that TV show is quickly regained with some extra. They never learned healthy eating habits and so once they are done they slip right back into what they were doing not having learned how to eat healthy.

It is my opinion that losing more than 1.5 to 2 pounds a week needs weekly supervision and blood chemistry monitoring by a doctor.

Good Luck
Roger 220 pounds less weight than 2.5 years ago and yes I did it over a two year period and have been maintaining since February