Hello dear,
First of all, do not get influenced by any advertisement of Health supplements.
It is not advisable to take any medication/supplements for weight gain, because:
1. The medications interfere with the normal metabolic rate of the body & causes a number of side effects
2. The individual tends to lose more weight after stoppage of the medication.
So, it is advisable to consult your family physician once before choosing any such medication or health supplement.
Moreover, you should not compromise on routine healthy food such as:
1. Consume more of natural diet like fresh fruits, green vegetables, milk, eggs, wheat, etc.
2. Avoid oily and junk food.
3. Stay away from
smoking & alcohol.
Wishing you a healthy life.
Take care.