• When people eat calories in the form of solid food, they naturally compensate by reducing the rest of their food intake. But when people ingest liquid calories (alcohol, juice or soda), they don't compensate for them by eating fewer calories.

• The mechanisms controlling hunger and thirst are completely different, and liquids — even if they contain calories — don't seem to satisfy hunger even if they quench your thirst.

• Fluid calories do not hold strong satiety properties. "When the number and type of calories are the same, the calories in liquid form won't suppress ghrelin as effectively as if the same calories were in solid form," says David Cummings, Associate Professor of Medicine at the University of Washington.

• Fortunately, fluids with food in them, such as soups, are very satiating

Learn: KNES 237 Part 1