Vitamin C-rich vegetables and fruits and cardiovascular disease.

CVD risk: Data about total CVD risk was provided by 2 cohorts. A significant protective effect was found from pooled results of these cohorts (Hung HC [10]).
Effect modification: Pooled results from these cohorts showed that the protective effect was significant among current smokers only (Hung HC [10]). Also, this effect was not found among subjects with high (> 55 en%) carbohydrate consumption (Joshipura KJ [10]).

CHD risk: Data about heart disease risk was provided by 2 cohorts (Hung HC [10]). No association was found.

Stroke risk: Data about ischemic stroke risk was provided by 2 cohorts (Hung HC [10]). A significant protective effect - which was stronger among current smokers- was found from pooled results of both cohorts , but stratified analysis showed this association was found among women only.

Conclusion: A significant protective effect of vegetables and fruits rich in vitamin C against total CVD risk was found in 2 cohorts of moderate-large size. Vitamin C-rich vegetables and fruits possibly protect against total CVD risk (- 6%). This evidence was restricted to current smokers, and to subjects with low-moderate carbohydrate consumption (≤ 55 en%).