The Claim

During weight regain after semistarvation in rats, core body temperature is lower than in control animals despite identical food intake and no difference in locomotor activity, indicating that reduced energy expenditure is due to internal metabolic suppression rather than decreased movement.

Source: Low 24-hour core body temperature as a thrifty metabolic trait driving catch-up fat during weight regain after caloric restriction.

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
16score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

How it works
1 study reviewed
In plain English

After recovering from severe food restriction, rats have lower core body temperature than rats that were never restricted, even when both groups eat the same amount and move the same amount. This shows that the drop in energy use comes from internal metabolic changes, not reduced physical activity.

See the scientific wording

During weight regain after semistarvation in rats, core body temperature remains lower than in control animals despite identical food intake and no difference in locomotor activity, indicating that reduced energy expenditure is not explained by decreased movement but by internal metabolic suppression.

Why this might work

After severe dieting, the brain lowers the body's target temperature, causing muscles to work less hard and produce less heat. This saves energy that the body uses to store fat instead of burning it, even when eating the same amount and moving the same as normal animals.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: Low 24-hour core body temperature as a thrifty metabolic trait driving catch-up fat during weight regain after caloric restriction.

    After rats lose weight and start eating normally again, their bodies stay cooler than normal rats—even though they eat the same and move the same. This means their bodies are burning less energy on their own, not because they’re lazy, but because their metabolism has slowed down internally.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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