Does Whole Grains actually make a difference, or is it overhyped?

Whole grain intake is supported by a large dose-response meta-analysis of prospective studies linking higher consumption to lower cardiovascular disease, cancer, and all-cause mortality, reinforced by a major Lancet series on carbohydrate quality and fiber, and an American Heart Association dietary guidance statement. Weighing the data: Whole Grains looks well-supported and consequential — the evidence is rated strong (80/100) and its estimated impact on longevity is also rated highly (76/100), making it one of the more solidly-backed choices on Vitaebase.