A large review of clinical trials has identified a daily target for whole grains that may offer meaningful heart health benefits. Researchers examined data from 87 studies and found that people who consumed four to six servings of whole grains per day showed improvements across a range of cardiovascular risk measures.
Those improvements included lower body weight, reduced waist circumference, and better blood pressure, cholesterol, blood sugar, and triglyceride levels. The review suggests that this intake range represents a practical sweet spot, where the benefits are most consistent.
Because the findings come from a review of existing trials, they reinforce rather than replace current dietary guidance. Still, the analysis gives clinicians and consumers a concrete benchmark for how much whole grains to aim for each day.