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Binge eating disorder is a significant mental health condition characterized by recurrent episodes of excessive food consumption within a short period, accompanied by a perceived loss of control over eating behavior. Unlike occasional overeating, binge eating disorder is marked by distressing emotions such as guilt, shame, and anxiety following binge episodes. The disorder affects individuals across different ages and backgrounds, with profound implications for physical and psychological...
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Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...
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Related Experiment Video

Updated: Jun 9, 2025

A Novel Procedure for Evaluating the Reinforcing Properties of Tastants in Laboratory Rats: Operant Intraoral Self-administration
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Food Addiction.

Haley Krupa1, Ashley N Gearhardt2, Anne Lewandowski3

  • 1Marian Regional Medical Center, Santa Maria, CA 93454, USA.

Brain Sciences
|October 25, 2024
PubMed
Summary
This summary is machine-generated.

Overconsumption of highly palatable food (OHPF) shares neurochemical pathways and behaviors with drug addiction, increasing dependency risk. Further research is needed on food addiction

Keywords:
addictivebehaviorbinge eatingclinical treatmentfood addictionmotivationneural reward pathwayspalatable foodpharmacotherapy

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Area of Science:

  • Neuroscience
  • Addiction Research
  • Nutritional Psychiatry

Background:

  • Overconsumption of highly palatable food (OHPF) activates brain reward pathways similar to drug use.
  • This activation increases the risk of developing dependency on food.
  • Behavioral parallels exist between food and drug addiction, including loss of control, withdrawal, and craving.

Purpose of the Study:

  • To establish a connection between drug addiction and OHPF.
  • To discuss shared behaviors and neurochemical pathways.
  • To review current literature on the neurobiology of food addiction.

Main Methods:

  • Literature review of studies on drug addiction and OHPF.
  • Analysis of shared behavioral stages: loss of control, withdrawal, craving, sensitization, and cross-sensitization.
  • Examination of neurochemical pathways: mesolimbic dopamine system, endogenous opioids, acetylcholine, and serotonin.

Main Results:

  • OHPF and drug addiction share common behavioral patterns and neurobiological adaptations.
  • The mesolimbic dopamine system, opioid receptors, and neurotransmitter balances (acetylcholine, dopamine, serotonin) are implicated in both conditions.
  • Consistent evidence indicates OHPF alters brain chemistry, mirroring drug addiction mechanisms.

Conclusions:

  • OHPF can lead to addiction through mechanisms similar to those of drug addiction.
  • Clinical and pharmacological treatments for food addiction are discussed.
  • More long-term research is required to understand the neurobiological effects of food addiction and binge eating.