Why replace excercised calories?

From my understanding, MFP has already calculated your calorie deficit for you WITHOUT exercise. So, if you burn calories with exercise, you should eat more to ensure you are getting enough fuel for your body.

From what I understand, MFP already has a deficit of 300 or so calories a day built in, so the weight should happen safely and without affecting your metabolism.

Not eating 'back' the calories means your body is portioning out a smaller amount of (caloric) energy between essential body funtions AND intense workouts, and it can make both suffer.

Edit: Though my husband (who was morbidly obese according to his BMI) didn't eat his back and lost 90lbs. But now I make him lol.

MFP gives you a calorie target with a deficit factored in. In order to stick to this deficit, you "eat back exercise calories". If you don't, the deficit becomes larger. Depending on how much you have to lose, and how big the deficit, this may be ok, it may be neutral, or it may bad. For best results that will last a lifetime, set a target calorie deficit and stick to it.

Yes, MFP has already calculated the deficit for you. For example, I am limited to 1200 calories per day to lose 2 lbs per week. If I exercise, it means my body needs more fuel to use throughout the day. I don't always replace the extra calories I burn but I know on the days that I exercise, I do need to eat more just to have the energy to make sure I can go to the gym the next time and have a good workout.

I don't think there is a correct answer to this. "Just realize you probably did not get to your current weight overnight, so don't try to loose it all at once" is probably at least part of the thinking behind it. I think there is a min your body needs for healthy living, and if you exercise this number would go up.

Again, my opinion. I am not a trained healthcare professional, but I did watch ER once in a while

Well if you eat your 1770 and exercise 600 then you'll only have netted 1170 (1770 - 600) which is too low for you, whereas if you eat 2430 and exercise 660 you'll have netted 1770

Hope I've explained that ok and hope it helps

If you burn them, you need to eat them back. Many MPF scientists will tell you that you don't have to. The reason they say this is because they don't understand thermal dynamics.

If you love yourself...you will eat them back.

Gotta put fuel in the tank

Cheers

Here we go again!!!!!!!!!!!!!!!!

See fat2fitradio.com . You CAN, perhaps, lose more initially by eating less, and not replacing your exercise calories, in the short run. However, some of that additional loss will come from muscle loss, in other words, after all the fat is burned that can be burned, your body will start to burn muscle. Muscle burns calories by just existing (it increases your metabolism). I was referred to a dietician after being diagnosed as a diabetic, and she is a registered nurse. She said that anything above 2-2.5 lbs per week, depending on how much you have to lose, is not healthy. In other words, it's possible, but it is probably not sustainable and could be detrimental to your health.

However, some on here refuse to accept this and do what you are mentioning and claim it works best for them. But I question how long they can sustain that, since most of the naysayers seem to have joined since January 2012.