Figure 4.

Vitamin D and B vitamins related metabolism levels in serum. (a) Serum 25(OH)D level; (b) Serum Hcy level; (c) Serum SAM level. CON: control; VDD: vitamin D-deficient diet; VDD + FA/VB₁₂: vitamin D-deficient diet plus folic acid/vitamin B₁₂ supplement; VDD + VD: vitamin D-deficient diet plus vitamin D supplement; VDD + VD-FA/VB₁₂: vitamin D-deficient diet plus vitamin D and folic acid/vitamin B₁₂. All data are presented as the mean ± SEM (n = 6). A two-sided p < 0.05 was considered statistically significant.