Fig. 3
From: High-iron consumption decreases copper accumulation and colon length, and alters serum lipids
Effects of high-iron feeding on serum glucose and insulin levels of rats. Five-week-old, male, SD rats were fed one of six diets, which varied only in their iron and copper content for 5 weeks ad libitum. Serum glucose (A), insulin (B), and HOMA-IR levels (C). The results are presented as means ± SDs; n = 10 per individual group. Data were analyzed by two-way ANOVA with Tukey’s post hoc test for further comparisons. Different letters indicate significant differences (P < 0.05) among the labeled means. L low; Ad adequate; H high; HOMA-IR homeostasis model assessment-estimated insulin resistance