Before prescribing diet plan I need to know proper information like urs medical history Family history etc. There are many reasons why you are not gaining weight . Taking protein supplement is not solution So  take high protein diet and balanced nutrition and contact me on practo direct consultation surely help you.

Hi, surely will help you. See, you will not gain weight until the cause of underweight is not treated even thou you are eating whey protein ,.This will only lead to high uric acid level ,water retension , kidney stone and even cause damage to kidney. There are many reason of not gaining weight. . Endrocrine problems . IBS . Dietary problem . Liver problem . Tuberculosis . Vitamin and minerals deficiencies . GI (Digestive)problem . Improper sleep . Stress And many more There is caused behind every disease. So, better to consult through the link below,so that  we can discuss in detail and suggest you accordingly.