September 22, 1978 (vol. 59, iss. 14) • Page Image 7
…Health Service Handbook QUESTION: While I was at home for vacation, my sister told me she is lactose-intolerant. Can you explain what this means? ANSWER: Your sister is deficient in an enzyme, called lactase, which resides in the small intestine and is necessary for the digestion' of lac- tose. Lactose is the sugar in milk and milk products, such as cheese, and foods made with, milk, such as pudding. It is estimated that more than 30 million ...…