When lean men eat meals with more fat or protein instead of lots of carbs, they feel less hungry, fuller longer, and end up eating less food later.
See the scientific wording
In lean men, high-fat and high-protein meals are associated with reduced hunger and greater fullness compared to high-carbohydrate/low-protein meals, and are associated with lower subsequent energy intake at a buffet meal.
Correlational — new studies may shift this
ObservationalOne low-scoring study links this claim to the outcome, but causation is not established.
What the research says
1 study reviewedSupporting (1)
Cross-Sectional StudyHuman2012
In lean men, eating meals high in fat or protein made them feel fuller and less hungry than eating meals high in carbs, and they ended up eating less food later — exactly what the claim says.
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.
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Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting study
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When lean men eat meals with more fat or protein instead of lots of carbs, they feel less hungry, fuller longer, and end up eating less food later.
Evidence from Studies
Supporting (1)
Community contributions welcome
In lean men, eating meals high in fat or protein made them feel fuller and less hungry than eating meals high in carbs, and they ended up eating less food later — exactly what the claim says.
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.