Foods high in carbohydrates often are called "carbs." Most of these are plant-based foods like breads, cereals, fruits, and starchy vegetables (corn, potatoes, etc.). Milk, which also contains carbohydrates, usually is not considered a “carb” food.
High-carbohydrate foods vary in their nutritional value. Those that are less processed generally contain more vitamins, minerals, and fiber and often are lower in sugars and fat than more highly processed “carbs.” For example, breads made with 100% whole grains generally are more nutritious than breads made with refined flour. For specific nutrient content, check the "nutrition facts" panel on the food label. Many high-carbohydrate foods provide a variety of nutrients and are an important component of a healthy diet when eaten in sensible portions.
The problem many people have with “carbs” is that so many highly processed plant-based snack foods (chips, candies, cakes, and other bagged treats) also are high in fat and/or sodium, two nutrients that should be limited in our diets. They also are usually low in vitamins, minerals, and fiber. People tend to overeat these foods, providing themselves with "empty" calories that contribute to the risk for obesity, diabetes, and cardiovascular disease.