Eating an increased amount of calories the next day? what would happen?

[Anonymous]

I'm 16 years old, a male, 5 foot 7 inch and 129 pounds. For around 3 months, I've been eating around 1400 calories a day to lose weight (and it worked with my exercise). Enough about that, the main question is : what would happen if I ate an increased amount of calories the next day (I heard BMR slows down if you eat a reduced amount of calories needed by body)? (ex: I ate 1400 calories one day but the next day I ate 2500 calories. what would happen?)

[ggazelles]

One day isn't enough to do damage, but if you eat less than 1,000 calories for a few days straight, your body will go into starvation mode and will conserve every calorie it can instead of burning them.

[Asker]

Thank you for answering!

[ivarei]

one day of increased caloric intake isn't going to do any damage in the long run. it's takes an extra 3500 calories to put on one pound. but why are you trying to say so grossly thin?

[Asker]

Thnaks for answering again! but I'm not grossly thin...or even thin for that matter. I still have a belly sticking off of me by maybe .63 inches (or maybe you still consider that grossly thin. do you think it is okay if you can tell me your definition of thin? would be appreciated!) and my waistline is around 29.25 inches. I think the reason why my weight's so low for my age but I still have a belly is because of me lacking quite a bit of muscle for a guy my age.

[ivarei]

https://personaltrainerlpc.com/images/a_skinny_guy_2.jpg

this is skinny. and yeah, if you've not not got much muscle mass, it would cause you to weight very little.

[Asker]

Yeah...i'm not skinny in that case but I'm satisfied with the way my body is right now. Thank you for giving me ur definition of skinny!