Especially at work, I cannot eat anything without someone commenting on it (5'4", 230 highest, 215 2009, 135 now, 108 goal, and I've been at this job through it all so everyone knew me at that weight). Like Sun Chips. I eat 1200 a day. But what makes up those 1200 is up to me. I hate it when comment on what I eat because then I feel guilty that I'm eating something "bad" and I don't enjoy it and "waste" the calories.
At home they just want me to eat more. And sometimes I go out with people and I just want to spend time with them and chat up (i.e. people from the gym) and not have to eat anything, but I find a coffee does the trick, they see me with something in my hands, and I don't have to take in calories
But it really ticks me off when people comment on what I eat or what I don't eat or what I should eat or how much or how little.