What food group contains the most carbohydrates?

Grains are the food group that contains the most carbohydrates. This is primarily because grains, such as wheat, rice, oats, and corn, consist largely of starches, which are complex carbohydrates. These starches provide a significant source of energy when consumed. Additionally, many grain products, like bread, pasta, and cereals, are specifically designed to be high in carbohydrates, making this group especially rich in this macronutrient.

In contrast, while fruits and vegetables do provide carbohydrates, they are often in the form of sugars and fiber, and they usually contain lower levels of total carbohydrates compared to grains. Dairy products also contain some carbohydrates primarily in the form of lactose, but they do not match the carbohydrate content found in grains. Therefore, grains are indeed the predominant source of carbohydrates among these food groups, which is why this choice is the most accurate.