Evidence for anti-inflammatory effects of combined administration of vitamin E and C in older persons with impaired fasting glucose: impact on insulin action.
According to research, vitamin C and E – given separately – improve insulin sensitivity, i.e. the body´s ability to respond to the action of the hormone insulin in decreasing blood sugars. This is due to their inhibitory effect on inflammation, which is a key factor in insulin sensitivity. Based on these findings, the present study investigated the combined effect of vitamin C and E on insulin activity. 13 elderly men with increased blood sugars levels (a common feature of insulin resistance) were administered vitamin E (1000 mg/day) and vitamin C (1000 UI/day) for 4 weeks. The results showed that the combined administration of vitamin C and E lowered inflammation and improved insulin action. More details can be found in the study.
Rizzo MR, Abbatecola AM, Barbieri M, Vietri MT, Cioffi M, Grella R, Molinari A, Forsey R, Powell J, Paolisso G. Evidence for anti-inflammatory effects of combined administration of vitamin E and C in older persons with impaired fasting glucose: impact on insulin action. J Am Coll Nutr. 2008 Aug;27(4):505-11.