You can eat like shit and do a lot of exercise and be overweight.

I’m 90 kg at 180 cm. I ride my bike 450 km per week. A few weeks ago I did a 340 km, 3000 m elevation ride at 25.6 km/h and yesterday I did a 220 km ride at 27 km/h. Last week I burned 13,468 calories from cycling (this should be fairly accurate as I have a power meter).

I would say I’m quite fit, I can obviously ride my bike further and faster than the vast majority of people but I am definitely overweight and look fat.