Not so—significant dieting, zero soda or desserts, etc. But that's not as comparatively interesting for the argument as "can go on 10 mile hikes any weekend, yet made no progress". My point is directly intended to respond not just with anecdata, but that we have more work to do in research, diagnosis, and treatment of it.

I don’t mean this to be rude, but it sounds like you jumped to a quick conclusion based on preexisting simple expectations about obesity?