anyone who knows anything about Bodybuilding please?

Ok, my little brother has started going to the gym in the past year and is taking loads of supplements, I was wondering if there are any side-effects? (he's 16 btw)

They are as follows; "Jack3D CNS-Carosine-ATP Augmetor" , Cellmass Nighttime mass & recovery
activator", and "Gold Standard 100% whey protein Isolates"...

Thanks in advance!
 
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