Review of studies · Supplements / medicine · 16 Sept 2026
Four to six daily wholegrain servings tracked better heart-risk markers in a large trial review
Source: News-Medical
What the research found
Study (systematic review and meta-analysis of RCTs). Helda Tutunchi and colleagues report in the European Heart Journal (16 September 2026) pooling more than 6,500 participants from trials across Asia, Europe, the United States, Canada, Australia, and Brazil. Higher wholegrain intake was associated with lower body weight, waist circumference, blood pressure, total and LDL cholesterol, triglycerides, glucose, and interleukin-6. Benefits appeared at 30–40 g/day dry weight; the largest effects were at 60–100 g/day (~4–6 servings, e.g. oatmeal, wholegrain bread, brown rice). This is pooled trial evidence on risk factors, not a heart-disease outcome trial, and not a reason to start or stop prescribed lipid or blood-pressure medicine. Educational nutrition notes.
Evidence level: Review of studies. This is among the stronger kinds of evidence, but one study rarely settles a question.
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