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Subject:
From:
Mardrey Swenson <[log in to unmask]>
Reply To:
Lactation Information and Discussion <[log in to unmask]>
Date:
Sun, 30 Nov 2003 13:03:06 EST
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Esther,

I had just read an article about how oligosaccharides increase calcium 
absorption, so I looked at that search and found this article that mentions lactose 
and calcium absorption.  Even though the authors conclude adequate calcium is 
absorbed from the formuals they used with or without lactose they say this in 
the discussion:

       "In this study, we found significantly lower total and percentage 
calcium absorption   when infants were fed a lactose-free infant formula than when 
they were fed a formula     containing lactose; both formulas contained 
partially hydrolyzed whey protein.    However, the infants absorbed substantially 
more calcium than expected from both      formulas, and the lactose-free 
formula appeared to provide adequate absorbed calcium.     
       The use of lactose-free formulas based on cow-milk protein in infant 
nutrition has     increased recently. Many parents prefer these formulas 
because of the possibility of      lactose intolerance in their infants. However, 
lactose is thought to enhance the      absorption of minerals, especially 
calcium, and therefore the consequences of this    trend should be evaluated. 
Lactose-free soy-protein formulas have been used for many      years, but they 
usually contain substantially more calcium than do cow-milk-based     formulas to 
compensate for the decreased mineral absorption resulting from the    presence 
of soy protein and the absence of lactose."

youcan download the PDF of the article at this URL :

<A HREF="http://www.ajcn.org/cgi/content/full/76/2/442">http://www.ajcn.org/cgi/content/full/76/2/442</A>

Am J Clin Nutr. 2002 Aug;76(2):442-6.   
 Calcium and zinc absorption from lactose-containing and lactose-free infant 
formulas.
Abrams SA, Griffin IJ, Davila PM.

Mardrey Swenson, DC, IBCLC







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