Im 21 male my height is 5: 9 but my body weight is 55 kgs I feeling weak when I compared to my friends, so I would like to join gym when I went there a trainer suggest me some supplement boxs like weight gainer, body mass gainer are they good to use? Do get any health problems if I stop them after gaining my weight upto 70 kg?

Suggestions offered by doctors on Lybrate are of advisory nature i.e., for educational and informational purposes only. Content posted on, created for, or compiled by Lybrate is not intended or designed to replace your doctor's independent judgment about any symptom, condition, or the appropriateness or risks of a procedure or treatment for a given person.