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Legumes: the most important dietary predictor of long life. In 785 participants aged 70

what it claims

Regular consumption of legumes is identified as the most significant dietary factor for increasing longevity in older adults, potentially reducing the risk of mortality.

mixed

This claim is based on the FHILL study, observational research that points to an interesting correlation between legume intake and survival.

noli's read

This claim is based on the FHILL study, observational research that points to an interesting correlation between legume intake and survival. While legumes are rich in fiber and essential nutrients, the idea that they are the 'sole' predictive factor is an oversimplification. Broader meta-analyses (such as those published in the Journal of the American College of Nutrition) confirm the cardiovascular and metabolic benefits of legumes, but they generally view these foods as part of an overall lifestyle rather than as an isolated factor. The initial study is limited by its observational methodology, which does not allow for a direct causal link to be established, as noted by some members of the community who criticize the quality of self-reported data. In sum, the protective effect is plausible and supported by nutritional science, but the specific magnitude attributed to this single food in the thread remains an extrapolation. The community is quite divided, oscillating between enthusiasm for the data presented and skepticism regarding the methodology of studies based on dietary questionnaires.

the sources

  1. 1Estruch R et al. 2018
  2. 2r/ScientificNutrition

Claimed by r/ScientificNutrition. Noli grades the claim, never the person.

Decoded by Noli · July 18, 2026 · the original post

What the graded evidence says

Evidence
A-
Effect
major CV events, MedDiet+EVOO or nuts vs low-fat control — ~-30% relative
Measured on
7,447 adults at high CV risk, Spain

What’s uncertain

Cite the 2018 NEJM republication (the 2013 paper was retracted and re-analysed; results held). It's a PATTERN effect — no single food carries it.

r/ScientificNutrition in the Register50 claims graded · solidity 64/100See their record →

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