PMID:
J Am Coll Nutr. 2011 Aug ;30(4):248-58. PMID: 21917705
Abstract Title:
Dietary intake and supplement use of vitamins C and E and upper respiratory tract infection.
Abstract:
OBJECTIVE: Antioxidants are regulators of immune function and may play a role in upper respiratory tract infections (URTI). We investigated the potential effects of dietary intake from food and supplement use of vitamins C and E on the risk of self-reported URTI.METHODS: We conducted a population-based cohort study of 1509 Swedish men and women ages 20 to 60 with a follow-up period of 4 months. Participants reported a total of 1181 occurrences of URTI. Poisson regression model was used to control for age, sex, and other confounding factors.RESULTS: Among women, we found that the incidence rate ratio (IRR) for high intake of vitamin C (>200 mg/d) from food was 0.69 (95% CI 0.49-0.98) compared with low intake (150 mg/d) compared with low intake (
Health Time 