Where the term 'empty calories' originated

In 2011, a user-focused online nutrition guide described empty calories as calories from solid fats (saturated fats) and added sugars, such as cakes, cookies, pastries, doughnuts, sodas, fruit drinks, etc. They advised people to keep these to a minimum.

The so-called empty calories contain little or no micronutrients - vitamins and minerals our bodies need to function properly - but they still contain a combination of macronutrients (carbs, protein, and fat) that provide the body with energy.