What is the best way to gain back some mass for a 85 year old male who has been loosing mass weight mostly due to inactivity. , but got energy and no loss of appetite . any drink out there that will not increase sugar level or any other advise?

If appetite is still good, eating meal is still superior to drinking supplement. Glucerna is the can supplement which is advised for people with diabetes mellitus. In general, losing muscle mass is a normal process in the elderly.

Through the years I've had some patients in that age group who inexplicably lost 7-10 pounds. All testing was negative. They also felt well &had good appetites. I referred them to our registered dieticians at the local hospital who set them up with a healthy weight gaining diet. Some of them remained at their lighter weight as if it was predetermined by nature when that age was reached.