3 Useless Supplements you are still buying!

Tribulus Terrestris

An old school supplement. It was widely used as a testosterone booster herb, However, In 2007 a study showed that Tribulus Terrestris has no effect on muscle mass or Testosterone level, which means it's pretty much useless for bodybuilders!
 https://www.ncbi.nlm.nih.gov/pubmed/17530942

HGH, IGF supps

These stuff are widely sold as HGH, IGF-1... but they NEVER contain any hormones! In most cases they contain some Amino acids such L-Glutamine and L-Arginine along with some vitamins.

The point is: If I want Glutamine and Vitamins I would go with a men formula such OptiMen (it contains all the crap you can find in these "HGH") and cheaper.

BCAA

Yes, you heard that right. BCAA is pretty much useless. It's not me saying it, there are many, I mean MANY studies concluded that BCAA is almost a placebo. It doesn't promote muscle growth, It doesn't save you from catabolism. So? Why the big should i put my cash on it? I can buy When for that price and still get the useless BCAA since the whey protein naturally contains BCAA.  

http://www.ncbi.nlm.nih.gov/pubmed/8818199

http://www.ncbi.nlm.nih.gov/pubmed/24477835

 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3395580

 http://www.ncbi.nlm.nih.gov/pubmed/18974721

http://www.ncbi.nlm.nih.gov/pubmed/24620007