Food addiction in humans.

Area of Science:

• Neuroscience
• Addiction Research
• Obesity Studies

Background:

• Evidence for food addiction often parallels food craving with drug craving, showing similarities in neuroanatomy, neurochemistry, and learning.
• Brain mechanisms for craving likely evolved for natural rewards but are hijacked by drugs of abuse.
• While healthy individuals do not exhibit food addiction, overweight and obese populations may meet clinical criteria.

Purpose of the Study:

• To explore the concept of food addiction in humans.
• To investigate the parallels between food craving and drug craving.
• To identify potential factors contributing to addictive eating patterns.

Main Methods:

• Review of existing evidence focusing on neurobiological and behavioral similarities between food and drug craving.
• Analysis of clinical criteria for food addiction in different weight populations.
• Consideration of food properties and consumption patterns in relation to addictive eating.

Main Results:

• Numerous parallels exist in neuroanatomy, neurochemistry, and learning between food and drug craving.
• Overweight and obese individuals may clinically qualify for food addiction.
• Nonpalatable foods can also be desired and overconsumed, indicating factors beyond palatability are involved.

Conclusions:

• Consumption patterns, such as alternating access and restriction, may be more critical to addictive eating than food's sensory properties.
• The neurobiological underpinnings of craving are likely co-opted in addictive eating behaviors.
• Further research into consumption dynamics is warranted to understand and address addictive eating.