There is a lot of controversy surrounding Irisin. http://blogs.sciencemag.org/pipeline/?s=Irisin http://blogs.sciencemag.org/pipeline/?s=Irisin Quotes Peter A

There is a lot of controversy surrounding Irisin. http://blogs.sciencemag.org/pipeline/?s=Irisin http://blogs.sciencemag.org/pipeline/?s=Irisin Quotes Peter Attia? He isn't a researcher.