Final answer:
The exchange system groups foods into lists based on their nutritional value. Each list represents a different food group, such as starches, fruits, vegetables, meats, and fats. This system allows for flexibility in food choices while promoting a balanced and healthy diet.
Step-by-step explanation:
The exchange system is a method of grouping foods with similar nutritional value into lists and allows for the planning of a balanced diet. There are several exchange lists, including the starches and grains, fruits, vegetables, meats and meat substitutes, and fats. Each list contains foods that have similar nutritional profiles, such as carbohydrates, vitamins, and minerals.
For example, a typical food from the starches and grains list is a slice of bread. This list also includes pasta, rice, and cereals. A fruit typical of the fruits list is an apple. The vegetables list includes foods like broccoli, carrots, and spinach. The meats and meat substitutes list includes foods such as chicken, fish, and tofu. Finally, a typical food from the fats list is butter or oil.
The exchange system groups foods based on their nutritional content to help individuals plan balanced meals. It allows for flexibility and variety in food choices while ensuring essential nutrients are included. The system accommodates diet-planning principles such as portion control, balance, and moderation, which are key components of a healthy diet.