Hormonal
Diet-induced weight loss reduces postprandial levels of anorexigenic gut hormones (GLP-1, PYY, CCK), which increases appetite and promotes weight regain, whereas exercise training tends to increase or maintain these hormones, supporting satiety and weight maintenance.
If you lose weight through dieting, expect your hunger hormones (GLP-1, PYY) to drop, making you hungrier and increasing the risk of regaining weight. To counter this, incorporate regular exercise, which appears to help maintain or increase these satiety hormones, thereby supporting weight maintenance.
Diet-induced weight loss results in long-term changes in appetite gut hormones, postulated to favour increased appetite and weight regain while exercise programmes modify responses in a direction expected to enhance satiety and permit weight loss and/or maintenance.
Why this rating
The paper is a review of multiple RCTs and observational studies, synthesizing evidence on hormonal responses.
Source
Altered gut and adipose tissue hormones in overweight and obese individuals: cause or consequence?
MEJ Lean et al. · International Journal of Obesity · 2015
DOI 10.1038/ijo.2015.220
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