foods provide little to no essential nutrients relative to the number of calories per serving, whereas foods provide a good amount of one or more essential nutrients relative to the number of calories per serving.

1. Empty calorie food

2. Nutrient dense food

Explanation:

The modern research has helped humans classify the food on the basis of the calorie content present in them and the nutrient content.

Some food substances are nutrient-dense food which contains a high amount of calorie per serve and provides high nutrient content per serving whereas some food products which do not supply enough nutrients per serve.

Thus, Empty calorie food and Nutrient dense food are correct.