Good Day Doc, My Husband Been Heart By Passed 2005

Good day doc, my husband been heart by passed 2005 and 3 x heart attacks have suffer to long walk exercise because he have hernia desk pain..i got worried to him because he have to eat much i told control get diet and because i cook healthy vegetable and he said he cant control to my food cooked serve him is delicous,my concerned is to diet not gain in weight and not smoke too much, he had not working for almost 3 yrs because of his accident lost of 2 fingers in right hand and just seat playing games watching tv, he dont like excercise. my pleasure to give your advise doc.thanks and god bless u.