everal advantageous effects of vitamin C on human health have been stressed, such as the relationship between high plasma vitamin C concentration and reduced gastric cancer risk found in EPIC study (Jenab et al., 2006). Besides the antioxidant activity of vitamin C, which may explain its protective role against gastric cancer risk, several other activities could play a role, such as its ability to modulate cell growth kinetics and its putative antimicrobial activity, for example against Helicobacter pylori, a bacteria responsible for chronic ulcer and even stomach cancer. However, in the above case–control study, it seems.
