A member asked:

Is arginine safe to take? my brother-in-law has been encouraged to take "nitric factor" in the form of arginine, is this safe longterm?

A doctor has provided 1 answer

Arginine: Like many supplements there aren't really any studies looking at longterm outcomes (5, 10, 15yrs). It's probably safe, but will it boost athletic performance in a meaningful way? Maybe, maybe not. http://www.ncbi.nlm.nih.gov/pubmed/22251130.

Answered 12/9/2013

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