Tissue distribution of vitamin C and its transport proteins in the human body.
Ascorbate concentrations are from limited human data and are represented as
mg/100 g wet weight for tissues and molarity (mM or μM) for
intracellular and extracellular fluids. Asterisk indicates that the tissue
concentrations of ascorbate in the small intestine are heavily dependent on
recent dietary intake. Sodium-dependent vitamin C transporter (SVCT)
distribution is based on mRNA expression data in animals and human tissues.
Republished with permission from Saunders/Elsevier, from Michels, A and Frei B,
Vitamin C, in Biochemical, Physiological, and Molecular Aspects of Human
Nutrition, third edition, ed. MH Stipanuk, MA Caudill, pp.
626–54, copyright 2012 (62).