"A 2023 review associated whole grains with enhanced mood and a lower incidence of anxiety and depression. It also linked them to higher GMV.
Examples of whole grains are brown rice and breads and pastas labeled “100 percent whole grain” or “100 percent whole wheat.” Refined grains, such as white rice and white bread, do not fit into a healthy category, as they lack fiber and contain only a small fraction of the nutrients in whole grains."