Preference for glucose in Zn-deficient rats selecting from glucose and fructose diets.
Glucose and fructose selection patters of rats were analyzed for 28 d by a 2-choice selection in either Zn-adequate or Zn-deficient status. In this paper, we describe the following serial studies: (1) For the first 24 h, rats fed a Zn-deficient diet preferred a fructose-diet compared with a glucose-diet. On and after the third day, rats fed both Zn-adequate and Zn-deficient diets preferred the glucose-diet. (2) Throughout the experimental period, many of the rats fed a Zn-adequate and Zn-deficient diet continuously selected one diet. (3) Some of the rats fed a Zn-adequate and Zn-deficient diet suddenly changed preference for the glucose-diet or the fructose-diet. (4) The sum of daily glucose- and fructose-diet intake in rats fed a Zn-deficient diet showed a characteristic variation with the cyclic period of 3.9 +/- 0.4 d.
Ohyama
Tomoko
T
Faculty of Nutrition and High Technology Research Center, Kobe Gakuin University, Kobe 651-2180, Japan.
Kubota
Hirokazu
H
Horikawa
Yoko
Y
Matsuda
Koichi
K
Sakata
Shigeko Fujimoto
SF
Tamaki
Nanaya
N
D000818:Animals; D004032:Diet; D004040:Dietary Carbohydrates; D004435:Eating; D005518:Food Preferences / Q000502:physiology*; D005632:Fructose / Q000008:administration & dosage*; D005947:Glucose / Q000008:administration & dosage*; D008297:Male; D051381:Rats; D017208:Rats, Wistar; D015430:Weight Gain; D015032:Zinc / Q000008:administration & dosage / Q000172:deficiency*
D004040:Dietary Carbohydrates; D005632:Fructose; D005947:Glucose; D015032:Zinc