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The effect of sodium chloride ingestion on food intake and on fat deposition in male rats

Published online by Cambridge University Press:  25 March 2008

D. Drori
D. Drori
Affiliation:
Institute of Animal Science, Agricultural Research Organization, PO Box 6, Bet Dagan, Israel
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Abstract

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1. A 21 d slaughter trial was done using weanling male rats offered sodium chloride added at 10, 20 and 30 g/kg to a nutritionally adequate, control diet containing 13 g NaCl/kg, or added to the drinking-water at 5, 10, or 15 g NaCl/l. Food and drinking-water with or without NaCl were offered ad lib. and their intakes were measured..

2. NaCl in the food reduced food intake by 10–15%; NaCl in solution reduced food intake only when added at the 15 g/l level; the reduction was 25%..

3. NaCl increased the fluid intake of the rats; for NaCl in the food the increments ranged from 23 to 44%; for NaCl in the drinking-water they ranged from 44 to 229%..

4. Body fat was significantly reduced by 20 and 30 g NaCl/kg added to the control diet, indicating a reduction in the efficiency of fat synthesis. Comparable amounts of NaCl taken in the drinking-water had a negligible effect on fat deposition..

5. It is suggested that NaCl in the food produces hypodipsia, i.e. a failure to drink an optimal amount of water, causing changes in the electrolyte balance which reduce food intake and progressively reduce the efficiency of fat synthesis.

Type
Papers on General Nutrition
Information
British Journal of Nutrition , Volume 35 , Issue 2 , March 1976 , pp. 195 - 200
Copyright
Copyright © The Nutrition Society 1976

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