22 KGS weight gain u require. I can help with 4-5 KGS per month.no needs for supplements they have side effects

Hello! You should try small frequent eating habit. Concentrate on good protein n good fat along with complex carbs. Foods like milk n products, eggs, lean meat, fish, nuts n seeds, whole grains, n lot of water must be in your diet. 30 min of any exercise. Best visit a dietician or massage me personally for specific diet plan. Wish you good health.