Refined Grains

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•Last Updated: August 28, 2025

Refined grains are processed in a way to remove the bran and germ (the layers that make up whole grains). Examples include white rice, white bread, white pasta, and white flour.

Last Updated:August 28, 2025

Research FeedRead all studies

Eating more whole grains is associated with a lower risk of high blood pressure

In this meta-analysis of 9 cohort studies in 182,617 men and women, eating more whole grains was associated with a lower risk of high blood pressure.

Whole grains, compared to refined grains, alter the gut microbiome and improve blood lipids in children

Changes in carbohydrate intake and weight gain

The association between food groups and liver cancer

Cereal intake and mortality: Are whole grains better than refined grains?