While the negative side effects of glucosamine in adults are minimal, not enough research has been conducted to confirm or deny claims that glucosamine is safe for the majority of children to take on a regular basis. Because of its health benefits for athletes and older individuals experiencing pain and arthritic symptoms, as well as evidence that it slows down the process of arthritis and joint pain, it has been suggested that it might help young children avoid bone or joint pain (especially young athletes who play multiple sports. Unfortunately, more research is still needed and you should certainly talk to your child’s pediatrician before starting them on any supplement regimen.