>where does it say black tea increases NO in vivo? Activation of Endothelial Nitric-oxide Synthase by the p38 MAPK in Response to Black Tea Polyphenols* https:

>where does it say black tea increases NO in vivo? Activation of Endothelial Nitric-oxide Synthase by the p38 MAPK in Response to Black Tea Polyphenols* https://www.jbc.org/content/279/45/46637.short https://www.jbc.org/content/279/45/46637.short >Reference for beets being linked to NO isn't given. Beetroot juice increase nitric oxide metabolites in both men and women regardless of body mass https://www.tandfonline.com/doi/abs/10.3109/09637486.2015.1121469 https://www.tandfonline.com/doi/abs/10.3109/09637486.2015.11... Nitrates in vegetal foods are turned into nitric oxide in the GI tract.