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. 2021 May 28;13(6):1844. doi: 10.3390/nu13061844

Figure 2.

Figure 2

Dose–response association between vitamin C concentration and risk of total CVD mortality with 95% CI from 6 studies with 45,040 participants and 2992 cases. From [56]. Vertical red line indicates vitamin C deficiency, i.e., blood ascorbic acid < 11.4 µmol/L, used in setting DRI [28].