In one study, results showed that caffeine boosted metabolic rate by as high as 29 percent in lean individuals. (detoxdiy.com)
Certainly, not all overweight individuals experience reflux, and plenty of lean individuals do. (KetoDietApp.com)
Recent studies that used the conventional blood oxygenation level — dependent fMRI have shown selective overactivity in the nucleus accumbens and related brain areas in obese compared with lean individuals when shown imagines of highly palatable food (6 — 11) and in subjects who scored high on a measure of food addiction (39). (academic.oup.com)