Anonymous wrote:
Anonymous wrote:I doubt you are too thin. For instance (since apparently we are humble bragging) , I am 5'7" with a medium build around 120, and I am fit (swim, run, lift, bike, etc) - but I'm not too thin. I'm not sickly or haggard or anything of the like - I'm in my 40s.
Just eat when you want to, why force yourself to eat when that isn't what your body wants?
Different body types, bone density, and body composition. I doubt you have a "medium" build if you're 5'7 and 120 and don't look too thin. You probably have small bones, or a narrow-set frame, low bone density, or maybe you're Asian. There is an objectively healthy range of body weights within CDC BMI guidelines, but within those different body types look and feel healthier at different weights within that range.
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