He was a health nut before it was popular.

Lifted weights, ran nearly every day, ate a Mediterranean diet, low body fat, trim waist, healthy body weight, and a decent amount of muscle. He also did not eat much during the workday, so was effectively unintentionally doing intermittent fasting as well.

Ironically, one of his reasons for sleeping less was to have time to fit exercise into his hectic schedule.

His diabetes manifested as unexplained weight loss and muscle wasting.

So, no, he was not your "typical" diabetes patient.