Complex sentence: Dried whey, a very common food additive, contains 65-75% lactose and 11-12% protein When used as a food additive, whey can contribute to quantities of lactose far above the level of tolerance of most lactose-intolerant individuals.
Split into simpler sentences: Dried whey, a very common food additive, contains 65-75% lactose and 11-12% protein. American Dairy Products Institute When used as a food additive, whey can contribute to quantities of lactose far above the level of tolerance of most lactose-intolerant individuals.