In fact, the amounts of antioxidants that lend protection are not known and probably differ among individuals. People exposed to increased oxidative stress may have elevated antioxidant requirements.
事实上，到底多大量的抗氧化剂可以对人体带来保护目前并不清楚，并且也许因人而异。受到更多氧化应激的人对于抗氧化剂的要求也许会更高。