In general, in lean subjects, meal appearance in the peripheral circulation was found higher in women than in men, irrespective of age (215). (academic.oup.com)
Even the very lean subjects had double the fat oxidation rates on low carb versus when they did the same exercise on their typical high carb diet. (mariamindbodyhealth.com)
She also compared the properties of adipose tissue with leaner subjects who had undergone elective surgical procedures. (sciencedaily.com)