Why are wholemeal cereals nutritionally preferable to refined ones?

Wholemeal cereals are nutritionally preferable to refined ones because they retain the bran, germ, and endosperm, providing a higher content of fiber, vitamins, and minerals. This fiber aids in digestion, helps regulate blood sugar levels, and promotes satiety, which can assist in weight management. In contrast, refined cereals often lose many of these nutrients during processing, leading to a higher glycemic index and fewer health benefits. Overall, wholemeal cereals contribute to better overall health and reduced risk of chronic diseases.