In the meta-analysis, every additional 48 grams of whole grains consumed per day was associated with reductions in body weight, waist circumference, total cholesterol, and interleukin-6 (IL-6).
Notes on verification
Multiple secondary/journalistic sources report matching figures from the same underlying meta-analysis (Naghshi et al., European Heart Journal), but all trace back to a single study and its press materials, so this is single-source convergence rather than independent replication. [tier=bronze indep_score=0.525 clusters=5 claim_tier=notable | framework convergence=single on Naghshi et al. 2026 European Heart Journal meta-analysis of 87 RCTs (upstreams: Naghshi et al., 'Whole-grain consumption and cardiometabolic risk: a meta-analysis of randomized trials', European Heart Journal (2026), DOI: 10.1093/eurheartj/ehag519) — publishers independent, evidence may not be | kind=empirical eligibility=high (extractor: empirical/medium)]
Sources
- Cardiovascular Disease: 4 to 6 Servings of Whole Grains May Lower Risk (seed:health_and_medicine)
- https://cardiovascularbusiness.com/topics/clinical/heart-health/pass-oatmeal-whole-grain-foods-protect-heart-reducing-several-risk-factors (corroboration)
- https://www.news-medical.net/news/20260916/Scientists-tested-how-much-whole-grain-makes-a-difference-The-answer-was-not-simply-e2809cmoree2809d.aspx (corroboration)
- https://www.yourlifechoices.com.au/health/the-humble-food-with-a-heart-shaped-secret/ (corroboration)
- https://www.sciencetimes.com/articles/62607/20260916/should-you-eat-more-whole-grains-what-science-says-about-their-benefits-nutrition.htm (corroboration)
- https://uk.headtopics.com/news/scientists-tested-how-much-whole-grain-makes-a-difference-87823350 (corroboration)