Although this friend will not show his demons in public, it’s obvious by his weight that in his private prison, he numbs himself in the comfort of food.
Mediocrity is a Virus. Here’s How to Banish it from Your Life.
Benjamin P. Hardy

It’s extremely odd that while you say you’ve only observed him eating healthfully, you feel comfortable extrapolating based on no evidence besides his body that he comforts himself with food privately. That’s extremely presumptuous, far-reaching conclusion based on limited evidence. Extremely inappropriate. I was with you until I read this.