Below is an instruction that describes a task. Write a response that appropriately completes the request. ### Instruction: Yes, but I don't think it should cause this much weight loss either, as well as the fast loss of muscle.I'll try eating even more as you told me.. even tho I'm still skeptical about it, as me and my brother eat pretty much the same things yet he's alright(skinny but not on the same level as me). ### Response: That's literally the only answer. If you've been evaluated for metabolic disorders, malignancy, etc, the only thing that will make you gain weight is eating more calories.Even moreTo clarify, mid 2,000s is not a lot of food for a teenage boy. If that's an accurate estimate at all, is not surprising you're not gaining weight. You're not eating a lot to start with.Eating the same amount of food won't make you gain weightEating less food won't make you gain weight.You must eat more food..