When concern trolls say they're not body shaming or being negative, remind them that they base their assumptions of a person's health on the shape or size of the body. and that IS negative and shaming.
"Fat is an adjective not an insult." — It took me a long time to be able to even say the word fat in relation to my body. Now I embrace it, rather than find alternative words to hide what I used to be ashamed of ~cgh