According to the American College of Gastroenterology, our bodies rely on a digestive enzyme called lactase to help break down lactose into simple sugars (called glucose and galactose).

While the enzyme increases as we grow ... The supplements are in the form of tablets, capsules, chewables, or liquid drops. Liquid lactase can also be added directly to milk to pre-digest lactose ...

Lactase 1250Units; per 5 drops; liq. Add 5–15 drops to quart of milk; hydrolyzes 70%–99% of lactose at refrigerator temperature in 24 hours.