The Claim
In female mice, calorie restriction at 22°C induces a sustained reduction in core body temperature, which is largely prevented when mice are housed at 30°C, and this temperature-dependent hypothermia is associated with 78% of hypothalamic metabolic changes and 39% of systemic metabolic changes, indicating that ambient temperature critically modulates the metabolic adaptation to reduced caloric intake.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
When female mice eat fewer calories at 22°C, their core body temperature drops and stays lower; this drop does not occur when they are kept at 30°C, and the temperature change correlates with most metabolic shifts in the hypothalamus and some in the rest of the body.
See the scientific wording
In female mice, calorie restriction at 22°C induces a sustained reduction in core body temperature, which is largely prevented when mice are housed at thermoneutrality (30°C), and this temperature-dependent hypothermia is associated with 78% of hypothalamic metabolic changes and 39% of systemic metabolic changes, suggesting ambient temperature critically modulates the metabolic adaptation to reduced caloric intake.
When food is limited and the environment is cool, the brain shifts arginine to make nitric oxide, which opens blood vessels to release heat and lower body temperature. This drop in temperature signals the body to burn fat and break down muscle to make energy, because it needs to stay warm. If the environment is warm, the brain does not make nitric oxide, so body temperature stays normal, and the body does not need to burn fat or break down muscle.
What the research says
1 studyStudy: Metabolic adaptation to calorie restriction
When female mice eat less food, their body temperature drops — but only if it's cold. If they're kept warm, their body temperature stays normal and most of the body's metabolic changes from eating less don't happen. The study proves this by showing that warmth blocks nearly all the brain changes and almost half the body changes caused by eating less.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
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