To the Editor: Suarez et al. (July 6 issue)1 found that “people who identify themselves as severely lactose-intolerant may mistakenly attribute a variety of abdominal symptoms to lactose intolerance.” The lack of information about their subjects' symptoms after ingesting 15 g of lactose makes it impossible to determine whether any of those studied were truly lactose-intolerant – that is, whether or not they experienced gastrointestinal symptoms in addition to malabsorbing lactose. Subjects who were asymptomatic after consuming the test dose of lactose would not be expected to report any differences in symptoms between milk and lactose-hydrolyzed milk. To the Editor:.
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