Final answer:
Broccoli is an example of a nutrient-dense food because it contains a high concentration of essential nutrients per calorie, making it a valuable part of an adequate and healthy diet.
Step-by-step explanation:
An adequate diet is one that prioritizes nutrient-dense foods, which are foods that contain a high number of essential nutrients per calorie. Among the choices given, B. Broccoli is an example of a nutrient-dense food because it is rich in vitamins, minerals, fiber, and has a low calorie count relative to its nutrient content. Other nutrient-dense foods include fruits, vegetables, lean meats, fish, low-fat dairy products, and whole grains. These foods are integral to building a healthy plate and contribute to overall well-being and the prevention of chronic diseases.
It's important to make healthier food choices by opting for nutrient-dense options over 'empty-calorie' foods, which often contain high levels of sugar, salt, and unhealthy fats with little nutritional value. Foods that are nutrient-dense tend to be whole foods, which have been sustaining human health for generations. Consuming a variety of these foods is essential as no single food provides all the nutrients needed by the body in the correct proportions.