How much whole grain is equivalent to one serving?

One serving of whole grains is typically considered to be equivalent to 1 slice of bread. Whole grain bread is made from flour that contains the entire grain kernel, which means it retains the bran, germ, and endosperm, providing important nutrients and dietary fiber. This standard serving size helps individuals gauge their intake of whole grains, which is often recommended for its health benefits, including improving digestive health and reducing the risk of chronic diseases.

The other options, while related to grains or starches, do not accurately reflect a standard serving size of whole grains. For example, cooked rice and pasta may be whole grain if labeled as such, but the standard serving sizes for these foods are generally larger and often do not measure up to a single serving of whole grains as defined by dietary guidelines. A medium potato, while high in carbohydrates, is not classified as a whole grain and therefore does not fit within this context.