Heartburn and constipation are complaints that can occur to anyone. Although it tends not to be a serious problem, this condition can make you feel uncomfortable throughout the day. There are several things that can trigger heartburn and constipation, from eating spicy and oily foods, to consuming cow's milk. If your heartburn and constipation always appear after consuming cow's milk, you should be vigilant. It could be that you are sensitive to cow's milk because of experiencing lactose intolerance or allergic to the content that is in cow's milk. Causes of Heartburn and Constipation after Drinking Cow's Milk Some conditions that can cause you to experience heartburn and constipation after consuming cow's milk, include: Lactose intolerance Lactose intolerance is a condition when the body is unable to break down lactose, which is the sugar found in milk. Someone with this condition does not produce enough lactase enzyme to break down lactose into glu