How many studies support Whole Grains?

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. That's backed by 6 published studies in Vitaebase's database, including 3 meta-analyses, the most recent from 2021 -- a modest but real research base.