Is it safe for my teenager to take supplements as part of a weight training programme?

“Inappropriate or misjudged use of these supplements theoretically could have implications for mood, growth, hormone and cardiovascular functioning.”

A paediatric dietitian and a sport dietitian say teens taking supplements to ‘bulk up’ is unwarranted and potentially hazardous.

My 15-year-old son is taking creatine and protein supplements as part of a ‘bulking and shredding’ weight training programme. How safe is this for adolescents?