Complex sentence: In human nutrition, the term empty calories applies to food such as solid fats, vegetable oils, sugar and alcohol-containing beverages supplying food energy but little or no other nutrition in the way of vitamins, minerals, protein, fiber or essential fatty acids.
Split into simpler sentences: In human nutrition, the term empty calories applies to foods and beverages composed primarily or solely of sugar, fats or oils, or alcohol-containing beverages. These supply food energy but little or no other nutrition in the way of vitamins, minerals, protein, fiber, or essential fatty acids.