Final answer:
Complex carbohydrates are found in whole-grain bread, cereal, rice, pasta, vegetables, dry beans, and nuts. These include starches, which are glucose chains that the body breaks down for energy. Whole grains are recommended over processed grains for their nutritional benefits.
Step-by-step explanation:
The types of carbohydrates found in whole-grain bread, cereal, rice, pasta, vegetables, dry beans, and nuts are primarily complex carbohydrates. Complex carbohydrates include starches which are long chains of glucose molecules that provide energy once broken down by the body. Whole-grain bread, for example, contains about 15 grams of carbohydrates per slice, primarily in the form of complex carbohydrates, which can include fiber, B vitamins, minerals, and even protein.
Healthy eating guidelines recommend that you make at least half your daily grain choices whole grains, such as whole wheat bread, whole wheat pasta, and brown rice. These are preferred over processed grains because they offer more nutritional benefits and help maintain a healthy digestive system. Foods like vegetables and nuts not only provide carbohydrates but also fiber and a range of other essential nutrients.