Child Is Underweight. Suggest Some Food Supplement To Gain Weight
Thank you for posting a query.
Look, form your description, it is clear that your son is intelligent, active but thin, short and have low body weight.
The stature and figure of a boy or girl depends on many factors, like stature and figure of parents, healthy diet, and lastly genetic rearrangement. So, the stature and figure is not entirely in your hand.
What you have to do is to give him a good protein supplement. It is very helpful to gain weight.
You can also give him natural proteins like whey protein. This is the richest source of protein. Milk proteins are also necessary.
Apart from that he does not need any tonic.
For deworming, he needs an albendazole group of drug. For exact dosing and frequency, you have to consult with his treating doctor. Because, you need a detailed prescription.
Hope this information suffices. Let me know, if you have anymore question.
Regards.