Effects of Yogurt and Fermented-Then-Pasteurized Milk on Lactose Absorption in an Institutionalized Elderly Group
作者:
VarelaGregorio,
AntoineJean M.,
RuizBaltasar,
VarelaGregorio,
期刊:
Journal of the American College of Nutrition
(Taylor Available online 1992)
卷期:
Volume 11,
issue 2
页码: 168-171
ISSN:0731-5724
年代: 1992
DOI:10.1080/07315724.1992.12098240
出版商: Taylor&Francis
关键词: lactose digestion;elderly;yogurt;pasteurized yogurt
数据来源: Taylor
摘要:
In the present study we evaluated lactose malabsorption (LM) after ingestion of three dairy products in 53 healthy institutionalized elderly people. A preliminary screening with milk (250 ml, 11 g lactose) was carried out to select the LM subjects using the H2 breath test. The effect of consuming an equivalent amount of lactose contained in yogurt and fermented-then-pasteurized milk (FPM) was then assessed in LM subjects. Results indicated that 36% of the elderly population studied was considered as LM and that breath H2 excretion was significantly higher after ingestion of milk than after ingestion of yogurt. This beneficial effect was partially eliminated when FPM was tested. Moreover, breath H2 excretion was significantly higher (p<0.05) 3 hours after ingestion of FPM compared to the normal yogurt. These results demonstrate a high prevalence of LM in the elderly and confirm the positive effect of yogurt on lactose absorption, whereas pasteurized yogurt did not cause the same effect.
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