<s>[INST] Hi doctor, I am a 24 year old male. My height is 5'8" and weight is 53 kg. I want to gain weight. I do not feel hungry. I want to increase my appetite so that I can eat more. I also do not eat junk foods. I have always been underweight. I used a syrup to increase appetite when I was 14. But, I did not find that now in pharmacy. Please suggest good appetite enhancer. I am very upset because of my lean look. [/INST] Hi. For further information consult a nutritionist online --> </s>