In adults who are not obese, a higher resting metabolic rate is linked to better cognitive performance at rest, even when accounting for body size and how much energy they consume.
See the scientific wording
Resting metabolic rate is associated with baseline cognitive performance in non-obese adults, independent of body composition and energy intake.
Very strong evidence
Randomized trialsOne good-quality study supports this claim.
What the research says
1 study reviewedSupporting (1)
Randomized Controlled TrialHuman2020
Even without changing diet or exercise, people with higher resting metabolism tended to perform better on memory and thinking tests — and this link stayed true even when scientists accounted for body size and how much they ate.
Contradicting (0)
No contradicting studies found yet
That doesn't mean it's settled — it just means no study has tested the opposite.
Quality-weighted scoring: we follow the GRADE framework — each study is rated High, Moderate, Low, or Very Low based on study design, methodology rigor, and risk of bias. A single high-quality RCT can outweigh several weaker observational studies.
Scores reflect study quality, not just count.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting study
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In adults who are not obese, a higher resting metabolic rate is linked to better cognitive performance at rest, even when accounting for body size and how much energy they consume.
Evidence from Studies
Supporting (1)
Community contributions welcome
Caloric restriction, resting metabolic rate and cognitive performance in Non-obese adults: A post-hoc analysis from CALERIE study.
Even without changing diet or exercise, people with higher resting metabolism tended to perform better on memory and thinking tests — and this link stayed true even when scientists accounted for body size and how much they ate.
Contradicting (0)
Community contributions welcome
Score Breakdown
No multi-axis breakdown available yet. The overall Pro / Against score above is the best signal.
- No clinical evidence is available; the score reflects mechanistic plausibility only.
What Would Prove This
Per GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this claim, ordered from strongest to weakest.
Systematic Review of Resting Metabolic Rate and Cognitive Performance in Non-Obese Adults
Systematic review and meta-analysis of observational studies in non-obese adult humans measuring resting metabolic rate and standardized cognitive performance tests, with adjustment for body composition and energy intake.
Prospective Cohort Study of Resting Metabolic Rate and Cognitive Decline in Non-Obese Adults
Longitudinal cohort of non-obese adults aged 25–65 with baseline measurement of resting metabolic rate, body composition, and energy intake, followed for 5–10 years with repeated cognitive assessments.
Cross-Sectional Analysis of Resting Metabolic Rate and Cognitive Performance in Non-Obese Adults
Single-time-point measurement of resting metabolic rate, body composition, energy intake, and cognitive performance in a representative sample of non-obese adult humans.
Case-Control Study Comparing Resting Metabolic Rate in Adults with High vs. Low Cognitive Performance
Comparison of resting metabolic rate in non-obese adults classified as high vs. low cognitive performers based on standardized tests, matched for age, sex, body composition, and energy intake.
Animal Model Study of Resting Metabolic Rate and Cognitive Function in Non-Obese Rodents
Controlled experiments in non-obese rodents with manipulated metabolic rate (e.g., via pharmacological or genetic means) and standardized cognitive testing, with measurement of body composition and energy intake.