Sounds like your friend went through a half-assed ad-hoc diet & exercise program, which unsurprisingly didn't yield results.
Extracting any useful data from "I have friends who..." is impossible. People are notoriously bad at self-evaluating things like their food intake or exercise regiment, and on top of that they're prone to present themselves in a good light.
You'll find few people who'll say "Yeah I could have lost/gained weight, but I lack the dedication and impulse control to manage my diet & exercise", even though that may be the description that best explains the situation.
Extracting any useful data from "I have friends who..." is impossible. People are notoriously bad at self-evaluating things like their food intake or exercise regiment, and on top of that they're prone to present themselves in a good light.
You'll find few people who'll say "Yeah I could have lost/gained weight, but I lack the dedication and impulse control to manage my diet & exercise", even though that may be the description that best explains the situation.