Probably taking ozempic/wegovy (same medicine different brands). The generic term for it is semaglutide. It increases the time food takes to go through stomach and digestive system leading to feeling full much longer and decreasing appetite. It is like a non surgical weight loss with the same weight loss as those with surgery get. Literally a miracle drug for those unable to lose weight who are in the “heavily overweight/obese category” which he probably was.