"Normal metabolism" refers to the usual and healthy way your body processes the food and nutrients you consume to produce energy and perform bodily functions efficiently. Full definition
It is essential for normal metabolism of fat and protein. (wellnesspetfood.com)
* It is also a potent antioxidant that can protect the body's cells and molecules from damage by free radicals and reactive oxygen molecules generated during normal metabolism and typical environmental exposures. (nowfoods.com)
Healthy people who do not have cancer may very well benefit from antioxidants that can help reduce damage from highly reactive oxidative molecules generated by normal metabolism. (sciencedaily.com)