The primary nutrient found in grains is carbohydrates. Grains, such as wheat, rice, and oats, are rich in complex carbohydrates, providing a significant source of energy for the body. These carbohydrates are broken down into glucose, which fuels our cells and supports overall bodily functions. In addition to carbohydrates, grains also contain dietary fiber, protein, and essential vitamins and minerals, making them a staple food in many cultures around the world. Including whole grains in one's diet is beneficial for digestive health and can help in maintaining a healthy weight.