Käkelä P, et al. - The association of the small intestinal length with the non-alcoholic fatty liver disease (NAFLD) at baseline and with lipid metabolism before and after laparoscopic Roux-en-Y gastric bypass (LRYGB) was investigated via studying 70 consecutive morbidly obese patients recruited to this prospective study. Researchers performed a standard 60-cm biliopancreatic limb (BPL) and 120-cm alimentary limb (AL), and thereafter, measured the common channel (CC) length during elective LRYGB. As per findings, small intestinal length seems to regulate triglycerides (TG) metabolism before and after LRYGB. Hence, the outcomes of the elective LRYGB could be optimized via modifying the length of bypassed small intestine based on measured total small intestinal length.