The health benefits of nitrates, nitrites and nitric oxide are numerous: cardiovascular, vasodilating, immunity strengthening, bactericidal. The blood pressure lowering effect of potassium is much stronger for KNO³ than for KCl and the authors relate this to the formation od nitrite a known vasodilator.
Kapil V, Milsom AB, Okorie M, Maleki-Toyserkani S, Akram F, Rehman F, Arghandawi S, Pearl V, Benjamin N, Loukogeorgakis S, Macallister R, Hobbs AJ, Webb AJ, Ahluwalia A Inorganic nitrate supplementation lowers blood pressure in humans:...