Lactose is the sugar (carbohydrate) which is found in milk and most products which contain milk. Lactose intolerance happens when your body cannot digest and absorb this sugar allowing it . Choose lactose free or foods low in lactose – see the chart in this handout, “Common foods with and without lactose”. Buy yogurts and kefir with probiotics (also listed as live bacterial cultures) . Eat lactose foods with a meal instead of alone. Take a lactase enzyme supplement with your milk or milk product