Any good supplements (that can be easily purchased) to help athletes?

Question

I'm a middle distance athlete, and is there anything (legal or not) that can be taken to improve my times?

Answer 1

Beta alanine and amino acids. Beta alanine is one of the most promising supplements which gives longer muscle endurance and aminos will help build muscle without adding too much weight. Beta alanine on it's own might be tough to find unless you get it online but you can get a supplement that combines beta alanine and amino acids such as Purple Wraath.