Adaptive Thermogenesis · The Invisible Counterforce

Story

Connected to · 2

synergy · 1

Perimenopause Weight Shift
After weight loss, the body pushes daily energy use below what the new weight would predict (Rosenbaum 2010), and appetite-related hormones have still not returned to their earlier levels a year later (Sumithran 2011). Perimenopause is already a time when muscle is easily lost, and adding an extreme calorie deficit on top lets this defense cost your body composition even more.

regulates · 1

Eating Less Without Going Short
If a calorie deficit costs you muscle, your resting metabolism drops with it. After weight loss the body also saves an extra slice of energy on top of that, which is called adaptive thermogenesis. Together they make each further kilogram harder to lose. For the same deficit, eating enough protein and strength training shift more of the loss toward fat.

Read full story

Stop 1/5

Why the scale stops moving

EVIDENCEREVIEW 1 · COHORT 1

READ THE ORIGINAL

When the scale stalls a few weeks into a serious cut, it is usually not secret snacking, and it is not a broken metabolism. After weight loss, the calories the body actually burns each day run lower than what a calculation based on the new weight and body composition would predict. This is adaptive thermogenesis. Of two people at the same weight, the one who got there from a heavier weight often burns less each day, and the gap can last a long time.

It is an energy-saving response to shrinking reserves, not damage to an organ. Giving leptin back to people who have lost weight reverses most of the slowdown, which shows it is a reversible change in signaling. That is why cutting calories even harder often just pushes this defense deeper.

Educational content, not medical advice — consult a clinician.

Back

Adaptive Thermogenesis · The Invisible Counterforce

Story

Connected to · 2

synergy · 1

Perimenopause Weight Shift
After weight loss, the body pushes daily energy use below what the new weight would predict (Rosenbaum 2010), and appetite-related hormones have still not returned to their earlier levels a year later (Sumithran 2011). Perimenopause is already a time when muscle is easily lost, and adding an extreme calorie deficit on top lets this defense cost your body composition even more.

regulates · 1

Eating Less Without Going Short
If a calorie deficit costs you muscle, your resting metabolism drops with it. After weight loss the body also saves an extra slice of energy on top of that, which is called adaptive thermogenesis. Together they make each further kilogram harder to lose. For the same deficit, eating enough protein and strength training shift more of the loss toward fat.

Read full story

Stop 1/5

Why the scale stops moving

EVIDENCEREVIEW 1 · COHORT 1

READ THE ORIGINAL

When the scale stalls a few weeks into a serious cut, it is usually not secret snacking, and it is not a broken metabolism. After weight loss, the calories the body actually burns each day run lower than what a calculation based on the new weight and body composition would predict. This is adaptive thermogenesis. Of two people at the same weight, the one who got there from a heavier weight often burns less each day, and the gap can last a long time.

It is an energy-saving response to shrinking reserves, not damage to an organ. Giving leptin back to people who have lost weight reverses most of the slowdown, which shows it is a reversible change in signaling. That is why cutting calories even harder often just pushes this defense deeper.

Educational content, not medical advice — consult a clinician.