zinc

I'm looking for some advice on what you would recommend I supplement with when it comes to minerals What would be more important if you had to choose between supplementing with zinc or iron? I'm looking to boost my testosterone levels and also get my energy levels up. I don't react well to...

I think I'm a little bit confused when it comes to testosterone levels and how important zinc is what is the best way to get zinc and why is it so important for testosterone levels since it's just a mineral? Also where can you get it from? I always thought if you bought just zinc by itself it...

I am looking online at different websites and I see some really cheap supplements that only cost 10 or $15 for a month's worth. Do you think that these do anything ? Its mostly things like zinc, vitamins and amino acids. Will any of those help me in the gym or not