My friend dropped them pretty quickly. She's pretty pro (and also shortly after started joining me on my workouts and started calorie counting, dropping nearly 40 pounds! She's still maintained the weight loss. Super proud).  The more fat friends you have, the higher the probability of being/staying fat. Also, The more fat friends your friends have, the higher the probability of being/staying fat. In fact, it's been consistently demonstrated* that losing 6 fat friends will help you lose weight faster and keep that weight off than enrolling on 500 calorie deficit diet. Show this video to your friend: https://www.ted.com/talks/nicholas_christakis_how_social_networks_predict_epidemics *For the sake of scientific accuracy: "demonstrated" does not mean "proved". This means that wiping all fat people off the Earth won't eradicate obesity, and also means that, even if everyone else on Earth gets fat, you won't necessarily gain weight.