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Originally Posted by lieber508
I was actually wondering the same thing.
I am 5'2 and a little over 120 lbs. I have stopped exercising recently and have cut down to eating only 900 calories a day..is that not enough?
At that height and weight, it's hard to lose in a healthy fashion without exercising. You are trying to create a calorie deficit--a gap between how much you eat and how much you burn. When you are short and light, your body doesn't burn that much just sitting around. For you, at 120 lbs and no exercise, to have the same deficit I have at 170 pounds and 2 hours of exercise a day, you'd have to eat 200-300 calories a day. You can't do that, however--your body needs some food to even have the energy to burn fat. If you don't give it much at all, it is most likely just to slow you down, or make you go crazy with hunger until you eat.
This doesn't mean you can't lose weight without exercise. But it's going to be tough--you need to eat the bare minimum your body needs nutritionally and no more. To do this, you'll have to be smart and strict: I eat 1700 calories a day and it doesn't really matter that 70 of them are basically empty calories (3 Hershey Kisses). If you are trying to lose from 120 without exercise, there is no room for empty calories--every single one you eat needs to contribute towards your nutrition in two or three different ways--you have to eat efficiently.
People will disagree with me, but I don't think 900 very carefully chosen healthy calories is unreasonable for a woman of your size. That said, expect the weight loss to be slow: 0.5%-1% a week is a much better estimate than "1-2 lbs" and it makes a difference when someone is 120 lbs or less.