Smaller and frequent meals Avoid spices and citric fruits. Take high protein diet and balanced nutrition and do exercises Non veg paneer egg milk and milk products soyabean dal chana and butter ghee dry fruits. Drink water 16glasses daily

Hello dear See, you will not gain until the cause of underweight is not treated. There are many reason of being underweight . Improper liver functions . Endocrine imbalance ( diabetes/ thyroid) . IBS . Tuberculosis . Improper dietary diet . Vitamins and minerals deficiency .Eating disorders . Improper sleep .Stress . Medication Many more HOW WE TREAT UNDERWEIGHT THRU DIET . Finding and Curing the cause of underweight . Treating the deficiency and symptoms cause due to underweight . Diet to get ideal weight Before prescribing any thing ,we need some health information like Vitals,health parameter, physical activity, family history, occupation, daily routine and any many.so ,if you want to contact ,please contact us thru the link below