Vitamin C 23 – 85 umol/L
Source: Chromsystems kit insert (IM 65065 Vitamin C EN 07/2015 R1).
Vitamin C <11 umol/L . Severe vitamin C deficiency. These levels are typically associated with increased rates of scurvy.
Vitamin C levels 11 - 23 umol/L
Marginal vitamin C deficiency. Increased levels of Ischemic heart disease and mortality have been described in population based long term follow up studies. Lykkesfeldt J, Poulsen HE. Is vitamin C supplementation beneficial? Lessons learned from randomised controlled trials. Br J Nutr. 2010 May; 103(9):1251-9. doi: 10.1017/S0007114509993229.