What nutrient has accounted for virtually all of the increase in kcal intake of people in the United States since the 1970s?

Question

Quizplus · Accepted Answer

According to research, the nutrient that has accounted for virtually all of the increase in kcal intake of people in the United States since the 1970s is carbohydrates, specifically in the form of added sugars and refined grains. The consumption of these types of carbohydrates has led to an increase in calorie consumption and a decrease in nutrient density in the American diet, contributing to the obesity epidemic and other diet-related health problems.

What Nutrient Has Accounted for Virtually All of the Increase