This is just a hunch but, is there any chance your friends are trying to put you "back in your box"? Like, before you lost the weight you were the kind of guy they could push around, and now you've lost the weight, have changed a little (are you a teeny bit more confident?), and they don't like that?
People often feel threatened by change and then find a way to blame it on the other person.
"I think the basic anti-aging diet is also the best diet for prevention and treatment of diabetes, scleroderma, and the various "connective tissue diseases." This would emphasize high protein, low unsaturated fats, low iron, and high antioxidant consumption, with a moderate or low starch consumption.
In practice, this means that a major part of the diet should be milk, cheese, eggs, shellfish, fruits and coconut oil, with vitamin E and salt as the safest supplements."
- Ray Peat