The meta-analysis found the greatest benefits for most outcomes occurred at approximately 60–100 grams of whole grains per day by dry weight, equivalent to about 4–6 servings.
Notes on verification
Consistently reported across multiple independent outlets, all tracing back to a single peer-reviewed meta-analysis (Naghshi et al., European Heart Journal, 2026) and its accompanying editorial/press release. Convergent secondary sourcing but ultimately one primary study.
Sources
- Cardiovascular Disease: 4 to 6 Servings of Whole Grains May Lower Risk (healthline.com)
- https://www.usnews.com/news/health-news/articles/2026-09-17/whole-grains-4-6-servings-a-day-bring-major-heart-benefits (usnews.com)
- https://www.news-medical.net/news/20260916/Eating-four-to-six-wholegrain-servings-daily-protects-heart-health.aspx (news-medical.net)