Figure 1

Experiment A: effects of dietary folate, vitamin B-12, and vitamin B-6 on plasma DHA and homocysteine concentrations. Plasma DHA (A) and plasma total homocysteine (B) concentrations and their correlation (C; r = −0.73, P = 0.001) in rats that received either a B-vitamin-poor diet for 8 weeks (poor) or a B-vitamin-poor diet for 4 weeks followed by a B-vitamin-enriched diet for 4 weeks (enriched). Values are means, with the SEM represented by vertical bars. Different letters indicate mean values were significantly different (P < 0.01, n = 8 per experimental group).