THE CALORIGENIC EFFECT PRODUCED BY VARIOUS MIXTURES OF FOODSTUFFS

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Abstract
In rats, the specific dynamic action (S.D.A.) of 1.5 cc. of oleic acid plus 3 cc. of 50% glucose ingested together (which elevated the basal metabolism 6.9% during the 8 hrs. after ingestion) is probably less than the S.D.A. of 1.5 cc. of oleic acid alone (8.7% of basal). The S.D.A. of 3 cc. of 50% peptone plus 3 cc. of 50% glucose (about 10.5% of basal) is probably less than that of 3 cc. of 50% peptone alone (about 12.0% of basal) and is certainly less than the sum of the individual calorigenic effects (about 17.8% of basal). The S.D.A. of 3 cc. of 50% peptone plus 11/2 cc. of oleic acid (18.1% of basal) is almost equal to the sum of the S.D.A. of peptone ingested alone plus that of oleic acid (21.2% of basal).

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