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Effect of Previous Lactose Feeding upon Intestinal Absorption of Lactose in the Rat¹

Institute of Nutrition and Food Technology, and The Department of Agricultural Biochemistry, The Ohio State University, Columbus

ABSTRACT

The rate of intestinal "absorption" of lactose in the rat was greater after previous feeding for six weeks of a diet containing 25 per cent of lactose than after similar feeding of a comparable diet containing no lactose. The mean "absorption" coefficients (± the standard error of the mean) were 88 ± 12 and 57 ± 6 mg./100 g./hr., for the 25 per cent lactose-fed and the non-lactose fed groups, respectively.

¹ Supported by a grant from the American Dry Milk Institute, Chicago, Ill.

² Present address: Enzyme Institute, University of Wisconsin, Madison, Wis.