Read labels on foods to see if they have milk products in them. Even foods like margarines, shortenings, non-
dairy creamers, baked goods,
and salad dressings can contain lactose. Food ingredients that may contain lactose may be listed at the very end.
Look not only for milk and lactose, but also for words such as whey, curds, milk by-products, dry milk solids, and non-fat dry milk powder. If any of these words are listed on a label, the product contains lactose.