Hall & Kahan 2018

Research paper

Hall KD, Kahan S. Maintenance of lost weight and long-term management of obesity. Medical Clinics of North America. 2018;102(1):183-197. doi:10.1016/j.mcna.2017.08.012

Why we cite it

Clinician-oriented review by a metabolic researcher (Hall) and an obesity medicine specialist (Kahan) of why weight maintenance fails and what to do about it. Its central argument is that appetite changes likely play a more important role than slowing metabolism in explaining the weight-loss plateau, because the feedback circuit controlling long-term intake has greater overall strength than the one controlling expenditure — a qualitative claim, which is how the paper states it. It supplies two number-sets of different kinds: per-kilogram estimates it attributes to another source (expenditure down about 20-30 kcal/day, appetite up about 100 kcal/day), and mathematical-model output for an example patient at plateau (expenditure down under 200 kcal/day, appetite up 400-600). Reframes weight regain as biological rather than willpower-based, while providing clinical recommendations including cognitive flexibility, intrinsic motivation, relapse prevention and realistic expectation management.

This block carried the derived “2-3x greater” until 2026-08-30 — a week after the same figure was removed from Extracted knowledge, Useful for and Verification depth. The paper states no multiple anywhere. Worse, the version here paired it with the per-kilogram figures, where the arithmetic gives 3.3-5x rather than 2-3x — the exact inconsistency that first exposed the defect downstream in `kwl01`. It survived the correction because Contribution is free prose that nothing checks, while the blocks that were fixed are the ones a reviewer reads against sources. Found by the Librarian, not by me or by any tool.