What parts of the grain are used to make products such as brown rice and whole wheat bread?

Brown rice and whole wheat bread are made from whole grains, which include all three parts of the grain: the bran, germ, and endosperm. The bran is the outer layer that provides fiber and nutrients, the germ is the nutrient-rich core that can sprout into a new plant, and the endosperm is the starchy middle layer that serves as energy for the plant. In brown rice, the bran is left intact, while whole wheat bread incorporates the entire grain, ensuring that all the nutritional benefits are preserved.