My father has been diagnosed with diabetes and cholesterol about 5-6 years back.Currently both are under control he uses medicines regularly .Rest of all tests are normal including liver function test and cortisol harmone test.He is 63 but looks like 80 with several wrinkles and folds at face and neck area .He is worried about that and his weight is currently at 45 kg without any gain since 4-5 years .Any medications or treatment or ways to gain weight and reduce wrinkled appearance without side effects.Please kindly help