Interesting:
When your body starts to produce nitric oxide through arginine, it also creates an enzyme, arginase, which puts a limit on the amount of nitric oxide you can make. This effectively creates a “ceiling” on how big of a pump you can achieve.
L-norvaline works by inhibiting arginase production, allowing you to blow past that ceiling and keep producing nitric oxide throughout your workout. This makes your pumps stronger and longer lasting.
