Also known as: walnut
Latest evidence update: 2026-03-17
Strongest in Sample size (95). Held back by Recency (61).
Solid mix of RCTs with some methodological gaps.
Good cross-study replication, some imprecision.
Tens of thousands of participants pooled across studies.
Studies agree on direction of effect.
Healthy mix of recent and established research.
No quantified outcomes yet. Once we have studies with measurable endpoints, you will see per-outcome magnitude here.
Areas where research points to a consistent direction of effect. The strength of evidence is graded; the size of the effect is not quantified.
Compound-by-compound profile of what's in this food and the evidence behind each.
30g
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Higher intake of linoleic acid (LA) is associated with a lower risk of hip fractures, with the protective effect observed at intakes of 9-16 g per day.
Walnut consumption significantly increased catalase (CAT) activity, a key antioxidant enzyme.
Walnut supplementation significantly decreased Apolipoprotein B levels.
Walnut supplementation did not affect systolic blood pressure.
Walnut supplementation did not affect diastolic blood pressure.