Agmatine Sulfate Review - Does it Increase Nitric Oxide?

John talks about whether agmatine sulfate really increases nitric oxide.

Galgano F, et al.
Focused review: agmatine in fermented foods.
Frontiers in Microbiolgy. 2012 Jun 7;3:199.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3369198/

Gadkari TV, et al.
Agmatine induced NO dependent rat mesenteric artery relaxation and its impairment in salt-sensitive hypertension.
Nitric Oxide. 2013 Aug 29;35C:65-71
http://www.ncbi.nlm.nih.gov/pubmed/23994446

Sidney M. Morris Jr.
Arginine Metabolism: Boundaries of Our Knowledge
Journal of Nutrition June 2007 vol. 137 no. 6
http://jn.nutrition.org/content/137/6/1602S.long

Link to table of Agmatine content in foodstuffs
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3369198/table/T1/

Piletz JE, et al.
Agmatine: clinical applications after 100 years in translation.
Drug Discov Today. 2013 Sep;18(17-18):880-93
http://www.ncbi.nlm.nih.gov/pubmed/23769988

Pinthong D, Hussain JF, et al.
Comparison of the interaction of agmatine and crude methanolic extracts of bovine lung and brain with alpha 2-adrenoceptor binding sites.
British Journal of Pharmacology. 1995 June; 115(4)
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1908502/pdf/brjpharm00187-0147.pdf

Also here is a nice review of the evidence from a very good site:
http://examine.com/supplements/Agmatine/