Modern Weight Science Weekly · Issue #1 ·
Why the body defends the weight you lost
Welcome to the first issue. This week's thread runs through one of the best-documented findings in obesity science: losing weight doesn't reset the system back to neutral — it provokes a coordinated biological defence. Here's the evidence, in plain English.
New research
Appetite hormones stay changed a year after weight loss
Sumithran's landmark study found ghrelin elevated and satiety hormones suppressed twelve months after a diet — with hunger still raised.
Every kilogram lost makes you measurably hungrier
Polidori and Hall quantified the feedback: appetite rises roughly 100 kcal/day per kg lost — about three times the metabolic adaptation.
Featured article
Why appetite increases after dieting
The post-diet overshoot — why hunger often ends up higher than where it started, and why that's physiology, not weakness.
Study of the week
STEP-1: semaglutide and ~15% weight loss
Our plain-English read of the trial that reset expectations for what pharmacological appetite modulation can do.
Clinical insight
The practical implication of the hormonal-defence literature is a reframing, not a tactic: if weight loss durably shifts the hormones that govern hunger, then maintenance is an ongoing physiological task, not a willpower test that ends when the goal weight is reached. That's the logic behind treating obesity as a chronic, relapsing condition rather than a one-off project — see obesity as a disease, not a willpower failure.
Appetite science
One lever you can pull: protein and food volume genuinely raise satiety. Higher-protein, lower-energy-density meals produce more fullness per calorie — the mechanism behind why some foods fill you up. For the underlying signals, the satiety hormones library is the reference.
Weekly Digest
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