Unfortunately, nitric oxide secretion declines with age. However, it is feasible to beautify nitric oxide secretion with sure foods and herbs. Some of them consist of the following: . Pomegranate - Pomegranate is a powerful libido and nitric oxide booster. Clinical research BioRexin has proven that it may assist guys get harder erections with the aid of growing nitric oxide secretion and blood go with the flow to the penis.