Our expert says:
There is data that suggests that creatine supplementation enhances physiological adaptations to resistance training, probably by being able to train more intensely. However, much of this research has been laboratory-based. Re side effects, anecdotally, creatine could cause gastrointestinal distress, nausea and cramping. Studies on long-term side effects have not been published. There is some concern about long-term effects on the kidneys.
If it were me, I would rather continue training optimally, eating optimally, letting my body develop naturally. But, you are the one who has to weigh up the pros and cons. I also suggest you do a search on this website for further views on creatine, since I'm sure they have several articles archived on this topic.
I hope this helps your son.
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