my son 8 years old .. he is very thin . and his weight is 18 kgs. please suggest any health drink to gain weight.. and what type of foods I have to give. . he will eat very less

A. Hai good afternoon !! Yes according to age kid is under weight,the ideal weight should be 23- 27 kg. Give 3 meals,2 snacks include high protein,calorie rich ,good fat foods for weight gain. Milk,ghee,cheese,butter,curd,paneer,nuts ,banana, mango,egg,meat in regular diet helps in weight gain.