Jealousy and envy come with the territory.

I think when people see someone doing something that they wish they could (and know they SHOULD) be doing, they immediately go with their uneducated opinion that they got from "a friend" or "the news".

All I tell those people is:

"If this diet doesn't work, then why do I look like this?"

"If this diet is bad for me, then how am I in such good health?"

"If this diet is gonna make me fat when I stop, tell me when. 'Cause I do it every year, and every year I look better and better. Go ahead and eat your Snickers now."

The funny part is that these people usually tell me this while they are eating a Big Mac Value meal or something similar.

I just take it as a compliment.

Also, I have noticed that women are quick to praise each other, while men never do. You hardly ever hear a guy say "Wow man, you've really lost alot of weight!"