Why are people more comfortable telling someone to gain a few pounds than to lose a few pounds?

Prettykangaroos
People always tell me to gain weight, but to me, that's just as inconsiderate as telling someone to lose weight!

Both are implying that you're unhealthy.

This is just as offensive
3.bp.blogspot.com/.../IMG_1172.PNG

as this. https://cdn.meme.am/instances/500x/55870285.jpg

Opinions on this double standard?
Why are people more comfortable telling someone to gain a few pounds than to lose a few pounds?
21 Opinion