, Volume 28, Issue 1, pp 61–69 | Cite as

Failure to induce weight gain with palatable diets in monkeys (Macaca mulatta)

  • K. -L. Catherine Jen


Three diets popularly used to produce obesity in rodents were offered to male rhesus monkeys. A high fat diet (fat: 50% of calories) enhanced the daily caloric intake of the monkeys, but only slight and non-significant increases in body weight were observed over a period of six weeks. However, an increase in feeding efficiency was observed. Providing monkeys with an assorted, palatable supermarket diet failed to induce them to overeat. There were no changes in total caloric intake or in body weight. When the monkeys were supplemented with a bottle of 32% sucrose solution, in addition to a commercial monkey biscuit and tap water, a significant increase in caloric intake was observed, but no change in body weight occurred. Thus, palatable and calorically dense diets failed to induce sufficient increases in intake to produce change in body weight in non-human primates. Based on these results, only the high fat diet has greatest potential to produce obesity, and such obesity, if it occurs, will likely require long term experiments.

Key Words

High fat diet Supermarket diet Sucrose supplement Dietary obesity Monkeys 


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Copyright information

© Japan Monkey Centre 1987

Authors and Affiliations

  • K. -L. Catherine Jen
    • 1
  1. 1.Department of Nutrition and Food ScienceWayne State UniversityDetroitU.S.A.

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