Lipid levels in the feces and small intestine. Fecal levels of NEFA (A) and triglycerides (B), and triglyceride levels in the duodenum (C), ileum (D), and jejunum (E) were measured. Each bar represents mean ± SEM. n = 3–15 per group. **P < 0.01, vs. HFD +/+. ###P < 0.001 vs. ND +/+.