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Related Experiment Video

Updated: Nov 26, 2025

Palatable Western-style Cafeteria Diet as a Reliable Method for Modeling Diet-induced Obesity in Rodents
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The cafeteria diet: A standardized protocol and its effects on behavior.

Jaume F Lalanza1, Eelke M S Snoeren2

  • 1Department of Psychology, UiT The Arctic University of Norway, Tromsø, Norway.

Neuroscience and Biobehavioral Reviews
|December 14, 2020
PubMed
Summary

The Cafeteria (CAF) diet, mimicking human junk food habits, alters eating patterns and reduces the value of other rewards. This review proposes a standardized CAF diet protocol for behavioral experiments.

Keywords:
Animal modelCafeteria dietFood preferenceJunk foodMemoryObesityReward systemStressSystematic reviewWestern diet

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Area of Science:

  • Nutritional Neuroscience
  • Animal Behavior Models

Background:

  • Obesity is a significant health concern, driven by palatable, high-energy junk foods.
  • The Cafeteria (CAF) diet model uses varied, palatable foods to better mimic human eating patterns in animal studies.

Purpose of the Study:

  • To systematically review behavioral studies utilizing the CAF diet.
  • To propose a standardized CAF diet protocol for consistent experimental results.

Main Methods:

  • Review of existing literature on CAF diet in behavioral experiments.
  • Development of a proposed standardized CAF diet protocol (ad libitum, varied, rotated).

Main Results:

  • CAF diet alters meal patterns and reduces the hedonic value of alternative rewards.
  • CAF diet tends to decrease stress levels and impair spatial memory.
  • No consistent effects observed on locomotor activity, impulsivity, coping, or social behaviors.

Conclusions:

  • The CAF diet is a valuable tool for modeling human dietary habits and their behavioral consequences.
  • A standardized CAF protocol can enhance the reliability and comparability of research findings.