C9 - Sunday, May 6, 1984 - North Shore News Problems with lactose The sugar in milk By PATRICIA McCLINTON LACTOSE malabsorption is the inability to digest the milk sugar, lactose, because of an insufficient amount of the enzyme lactase in the small intestine. Lactase breaks down lac- tose into its simple sugars, glucose and galactose. Without sufficient lactase, water is drawn into the in- testine where bacteria convert the lactose to acids and gas. When this results in symp- toms, the condition is termed lactose intolerance. Symp- toms may include diarrhea, bloating, gas and cramps. A person is usually born with enough lactase to digest the amount of lactose con- sumed as breast or cow’s milk. But lactase activity in the digestive system gradually decreases with age. This is especially true among certain non-white populations who are most commonly affected lactose. Because this test ex- agegerates the extent of milk intolerance in a population, one should be cautious when using the test results to make dietary changes that limit milk consumption. Lactose-intolerant persons who experience symptoms after only one glass of milk may not develop symptoms when they eat other dairy foods such as yogurt, butter- milk or cheese. The fermen- tation process used to pro- duce these cultured dairy foods changes some of the lactose to lactic acid, taking this burden off the digestive system. ° Sometimes drinking small amounts of milk several times a day can also eliminate the symptoms. Additionally, enzyme preparations are available to reduce the lac- tose content of milk. Patricia McClinton, M.Sc., R.P.Dt., ts a nutrition com- munications specialist employed by _ fhe Dairy Bureau of Canada. Complimentary Dance & Fitness PASS May 7 - May 13 Be our guest for unlimited classes. by lactose intolerance. The Bring this pass with you to 3 as sian populations include ‘blacks, every Class. for you and your family’s health and fun and people of Meditteranean descent. Lactose intolerance is lowest among white adults of Scandinavian and western European ancestry. Not everyone who has trouble disgesting lactose shows symptoms of lactose intolerance. Many people diagnosed. as lactose- intolerant can drink normal amounts of milk without symptoms, especially if the milk is consumed with meals. 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