How is it possible that I eat this and stay thin af?

How is it possible that I eat this and stay thin af?

I mean i know that i have a fast metabolism but i still don't understand how it works... But when i do eat this i usually just get pimples rather than get fat... Any other reasons?

P. s some other skinny people eat a lot too and stay thin, not talking just about myself.

How is it possible that I eat this and stay thin af?
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