I fuel my body and I have amazing energy for my workouts.

Eating can become entirely mechanical: the banana in the car, the protein counted out, food as inventory management for a machine.

Up to a point it works. Turning up hungry to a session is a bad trade, and most people who feel weak halfway through were underfed rather than unfit. But fuel is only half of what food is. The same meal that powers a Thursday run is also sometimes the reason four people stayed at the table an extra hour. Bodies run on both. Eat for the workout, certainly. Just don't end up with a body you're carefully looking after and a diet with no pleasure anywhere in it.