The supplement industry is a cash cow, and highly unregulated — the Wild West of auxiliary nutrition.
If you flip through most fitness mags, half the issue is nothing but supplement ads. The magazines are really designed chiefly to sell them, not to give you advice (that’s secondary).
Unlike medicine and drugs, the FDA doesn’t regulate supplements. And even if a supp isn’t harmful, it’s probably bogus.
Before you piss away any more money on supplements, watch this video and reconsider.