Do you constantly feel bloated, have stomachache, diarrhea, feel flatulent after consuming dairy products? You could be lactose intolerant. Lactose is a type of sugar found naturally in milk. An enzyme known as lactase is responsible for breaking down lactose for digestion. However, as we grow 70% of the people stop producing enough lactase thus causing lactose intolerance. The signs and symptoms of lactose intolerance usually begin from 30 minutes to two hours after eating or drinking foods that contain lactose. It is advisable to consult a doctor before completely removing dairy products from the diet.