My mother-in-law is always making comments about my weight

We went out to dinner with my husband’s family, and the woman looked at my plate in front of everyone and said, “Haven’t you started your diet yet?” I was mortified. I actually pay a lot of attention to it, but between hormones and everything else, I just can’t seem to lose those pounds. Honestly, my morale has hit rock bottom. It really wears me out how ruthless people can be, plus my husband didn’t defend me at all, which made me even more upset.