title: Lactose digestion from unmodified, low-fat and lactose-hydrolyzed yogurt in adult lactose-maldigesters.
abstract: The efficiency of carbohydrate absorption from two unmodified plain yogurts, a low-fat yogurt and a yogurt produced from lactose-hydrolyzed milk, was compared using the breath hydrogen response in 14 lactose-maldigesters. The maldigesters showed symptoms of intolerance to a standard 360 ml glass of milk containing 18 g lactose. Compared to intact milk, the breath hydrogen response to two varieties of unmodified yogurt and the lactose hydrolyzed yogurt was severely attenuated while the hydrogen response to low-fat yogurt was intermediate. Intolerance symptoms were significantly and equally reduced with all four yogurt products compared to milk. Ten lactose-digesters had a significantly greater efficiency of lactose digestion with 360 ml of milk than the 14 maldigesters; however, except for the magnitude of the maximum rise in breath H2, no inter-group differences were observed in response to unmodified yogurt. We conclude that lactose prehydrolysis adds nothing to the ability to tolerate and digest plain, full-fat yogurts, but it may be useful with low-fat or pasteurized varieties.
authors.affiliation: Department of Nutritional Physiology, National Institute of Nutrition Salvador Zubiran, Tlalpan, México City, D.F.
authors.forename: J L
authors.initials: JL
authors.lastname: Rosado
authors.forename: N W
authors.initials: NW
authors.lastname: Solomons
authors.forename: L H
authors.initials: LH
authors.lastname: Allen
mesh_terms: D000328:Adult; D001944:Breath Tests; D004063:Digestion; D005260:Female; D006801:Humans; D007785:Lactose / Q000378:metabolism*; D007787:Lactose Intolerance / Q000175:diagnosis / Q000378:metabolism*; D008297:Male; D015014:Yogurt
chemical_list: D007785:Lactose