Food intake in rats is unaffected by the profile of dietary essential fatty acids

H. B. Rice, Rebecca L. Corwin

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Food intake may be differentially responsive to the type of fat in the diet. The present investigation sought to evaluate the energy intake of rats maintained on either a low-fat or a high-fat diet mixed with an oil rich in either linoleic (18:2; n-6; safflower oil) or linolenic (18:3; n-3; flaxseed oil) acid. In Experiment 1, rats (n=28) consumed low-fat versions of either the safflower oil diet or the flaxseed oil diet, each at 9.28% fat (wt/wt). In Experiment 2, different rats (n=28) consumed high-fat versions of these diets, each at 23.6% fat (wt/wt). Within each experiment, the energy intake of rats receiving the safflower oil diet was compared to the energy intake of rats receiving the flaxseed oil diet. Food intake was measured under short-term, long-term and food-deprived conditions. In Experiment 1, short-term energy intakes were not different between the groups, thus demonstrating equal acceptance of the test diets. There were no consistent differences in long-term energy intakes between the safflower group and the flaxseed group. In addition, there were no differences in energy intake under the food-deprivation condition. Results from Experiment 2 paralleled those of Experiment 1. Taken together, the present results suggest that the essential fatty acid profile of the maintenance diet does not influence food intake when nutritive oils are the predominant fatty acid source.

Original languageEnglish (US)
Pages (from-to)611-619
Number of pages9
JournalPhysiology and Behavior
Volume75
Issue number5
DOIs
StatePublished - Apr 15 2002

Fingerprint

Essential Fatty Acids
Energy Intake
Eating
Diet
Linseed Oil
Safflower Oil
Fats
High Fat Diet
Oils
Carthamus tinctorius
Food Deprivation
Flax
Fatty Acids
Maintenance
Food
Acids

All Science Journal Classification (ASJC) codes

  • Experimental and Cognitive Psychology
  • Behavioral Neuroscience

Cite this

Rice, H. B. ; Corwin, Rebecca L. / Food intake in rats is unaffected by the profile of dietary essential fatty acids. In: Physiology and Behavior. 2002 ; Vol. 75, No. 5. pp. 611-619.
@article{97da2ea08fcf4018befe10cd4fc42d53,
title = "Food intake in rats is unaffected by the profile of dietary essential fatty acids",
abstract = "Food intake may be differentially responsive to the type of fat in the diet. The present investigation sought to evaluate the energy intake of rats maintained on either a low-fat or a high-fat diet mixed with an oil rich in either linoleic (18:2; n-6; safflower oil) or linolenic (18:3; n-3; flaxseed oil) acid. In Experiment 1, rats (n=28) consumed low-fat versions of either the safflower oil diet or the flaxseed oil diet, each at 9.28{\%} fat (wt/wt). In Experiment 2, different rats (n=28) consumed high-fat versions of these diets, each at 23.6{\%} fat (wt/wt). Within each experiment, the energy intake of rats receiving the safflower oil diet was compared to the energy intake of rats receiving the flaxseed oil diet. Food intake was measured under short-term, long-term and food-deprived conditions. In Experiment 1, short-term energy intakes were not different between the groups, thus demonstrating equal acceptance of the test diets. There were no consistent differences in long-term energy intakes between the safflower group and the flaxseed group. In addition, there were no differences in energy intake under the food-deprivation condition. Results from Experiment 2 paralleled those of Experiment 1. Taken together, the present results suggest that the essential fatty acid profile of the maintenance diet does not influence food intake when nutritive oils are the predominant fatty acid source.",
author = "Rice, {H. B.} and Corwin, {Rebecca L.}",
year = "2002",
month = "4",
day = "15",
doi = "10.1016/S0031-9384(02)00666-2",
language = "English (US)",
volume = "75",
pages = "611--619",
journal = "Physiology and Behavior",
issn = "0031-9384",
publisher = "Elsevier Inc.",
number = "5",

}

Food intake in rats is unaffected by the profile of dietary essential fatty acids. / Rice, H. B.; Corwin, Rebecca L.

In: Physiology and Behavior, Vol. 75, No. 5, 15.04.2002, p. 611-619.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Food intake in rats is unaffected by the profile of dietary essential fatty acids

AU - Rice, H. B.

AU - Corwin, Rebecca L.

PY - 2002/4/15

Y1 - 2002/4/15

N2 - Food intake may be differentially responsive to the type of fat in the diet. The present investigation sought to evaluate the energy intake of rats maintained on either a low-fat or a high-fat diet mixed with an oil rich in either linoleic (18:2; n-6; safflower oil) or linolenic (18:3; n-3; flaxseed oil) acid. In Experiment 1, rats (n=28) consumed low-fat versions of either the safflower oil diet or the flaxseed oil diet, each at 9.28% fat (wt/wt). In Experiment 2, different rats (n=28) consumed high-fat versions of these diets, each at 23.6% fat (wt/wt). Within each experiment, the energy intake of rats receiving the safflower oil diet was compared to the energy intake of rats receiving the flaxseed oil diet. Food intake was measured under short-term, long-term and food-deprived conditions. In Experiment 1, short-term energy intakes were not different between the groups, thus demonstrating equal acceptance of the test diets. There were no consistent differences in long-term energy intakes between the safflower group and the flaxseed group. In addition, there were no differences in energy intake under the food-deprivation condition. Results from Experiment 2 paralleled those of Experiment 1. Taken together, the present results suggest that the essential fatty acid profile of the maintenance diet does not influence food intake when nutritive oils are the predominant fatty acid source.

AB - Food intake may be differentially responsive to the type of fat in the diet. The present investigation sought to evaluate the energy intake of rats maintained on either a low-fat or a high-fat diet mixed with an oil rich in either linoleic (18:2; n-6; safflower oil) or linolenic (18:3; n-3; flaxseed oil) acid. In Experiment 1, rats (n=28) consumed low-fat versions of either the safflower oil diet or the flaxseed oil diet, each at 9.28% fat (wt/wt). In Experiment 2, different rats (n=28) consumed high-fat versions of these diets, each at 23.6% fat (wt/wt). Within each experiment, the energy intake of rats receiving the safflower oil diet was compared to the energy intake of rats receiving the flaxseed oil diet. Food intake was measured under short-term, long-term and food-deprived conditions. In Experiment 1, short-term energy intakes were not different between the groups, thus demonstrating equal acceptance of the test diets. There were no consistent differences in long-term energy intakes between the safflower group and the flaxseed group. In addition, there were no differences in energy intake under the food-deprivation condition. Results from Experiment 2 paralleled those of Experiment 1. Taken together, the present results suggest that the essential fatty acid profile of the maintenance diet does not influence food intake when nutritive oils are the predominant fatty acid source.

UR - http://www.scopus.com/inward/record.url?scp=0037088955&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037088955&partnerID=8YFLogxK

U2 - 10.1016/S0031-9384(02)00666-2

DO - 10.1016/S0031-9384(02)00666-2

M3 - Article

C2 - 12020726

AN - SCOPUS:0037088955

VL - 75

SP - 611

EP - 619

JO - Physiology and Behavior

JF - Physiology and Behavior

SN - 0031-9384

IS - 5

ER -