Why nitroglycerin can treat sudden coronary heart disease for a short time, because nitroglycerin can produce nitric oxide through chemical reaction, thus dilating blood vessels.
But the pharmacology of nitric oxide capsules cannot explain:
First, the components of some nitric oxide capsules are just basic substances such as amino acids and vitamins, and have nothing to do with nitric oxide.
Second, nitroglycerin is absorbed under the tongue rich in blood vessels, not eaten. It is not clear how nitric oxide capsules produce nitric oxide through the digestive tract and release it into the blood.
Third, just as nitroglycerin is only used at the onset, nitric oxide is a toxic substance and cannot be used for a long time.
There are too many consumer traps in China and too many businesses with no moral bottom line. Consumers should study and analyze more to prevent being fooled.