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Smoothies Containing Prebiotic Compounds Boost Calcium Absorption In Young Girls

March 14, 2013: 12:00 AM EST
Scientists from Purdue University and Dutch dairy cooperative FrieslandCampina have found in a study of 31 healthy adolescent girls that smoothies containing prebiotic galacto-oligosaccharides (GOS) changed the gut microflora, increasing bifidobacteria and significantly improving calcium absorption. The increase in calcium absorption was not linked to the level of GOS in the smoothies because calcium absorption improved whether the smoothies contained 2.5 g or 5 g of GOS. The girls drank the smoothies  twice a day for periods of three weeks. Increased calcium absorption may help reduce the incidence of osteoporosis, especially in postmenopausal women.
Corrie M. et al., "Galacto-oligosaccharides increase calcium absorption and gut bifidobacteria in young girls: a double-blind cross-over trial", British Journal of Nutrition, March 14, 2013, © Cambridge University Press
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