Health claim
“Consuming a daily serving of walnuts for 90 days increases sperm concentration by up to 20%.”
Claim checked — mixed / earlyMedium risknutrition
Evidence Summary
Some evidence supports this, but findings are inconsistent or limited in scope.
Some small studies suggest omega‑3‑rich nuts may improve semen parameters, but evidence is not consistent.
Extracted from
MALE FERTILITY: How to Improve Sperm Quality Naturally in 90 DaysNatalie Crawford, MD
Dr. Natalie Crawford outlines lifestyle and dietary changes she claims can enhance sperm quality over a 90‑day period.
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