A carbohydrate is a naturally occurring compound, or a derivative of such a compound, with the general chemical formula C, made up of molecules (O). Carbohydrates are the most widespread organic substances and play a vital role in all life.

Carbohydrates — fiber, starches and sugars — are essential food nutrients. Your body turns carbs into glucose (blood sugar) to give you the energy you need to function. Complex carbs in fruits, vegetables and whole-grain foods are less likely to spike blood sugar than simple carbs (sugars).

Learn how to choose healthy carbohydrates from whole grains, vegetables, fruits and beans, and avoid unhealthy sources of refined carbohydrates. Find tips, examples and references for a balanced and nutritious diet.

The type of carbohydrates you eat can impact your health. Foods that contain high amounts of simple carbs (added sugars), especially fructose, raise triglyceride levels, which may increase your risk of cardiovascular disease.

Carbohydrates, or carbs, are sugar molecules. Along with proteins and fats, carbohydrates are one of three main nutrients found in foods and drinks. Your body breaks down carbohydrates into glucose. Glucose, or blood sugar, is the main source of energy for your body's cells, tissues, and organs.

Learn how carbohydrates provide energy, affect blood sugar, and improve health. Find out the best and worst sources of carbs, and how to count them in your diet.

Explore the importance of carbohydrates in your diet, their functions, types, and how they impact your health. Learn about the healthiest sources of carbs and tips for incorporating them into...

Key facts. Carbohydrates are a macronutrient found in food. They provide your body with energy and helps your body function. Carbohydrates are found in different foods in 3 different forms — sugars, starch and fibre. Some sugars break down more slowly than others (low GI foods) and are generally better for you.

Learn about the role, types and sources of carbohydrates in the diet. Find nutrient lists, grains information, label tips and more from federal science and nutrition resources.