Eating Behavior and Satiety With Virtual Reality Meals Compared With Real Meals: Randomized Crossover Study

Area of Science:

• Psychology
• Human-Computer Interaction
• Nutritional Science

Background:

• Eating disorders and obesity present significant health challenges with high relapse rates.
• Virtual reality (VR) is being explored as a potential adjunctive tool to improve treatment outcomes for these conditions.

Purpose of the Study:

• To compare the experience of eating virtual versus real-life meals.
• To test if consuming a virtual meal can decrease hunger levels in healthy women.

Main Methods:

• A randomized crossover study involving 20 healthy women.
• Participants consumed one introductory, two real, and two virtual meals (meatballs and potatoes).
• Hunger levels were measured before and after meals; eating behavior was recorded via video and scales.

Main Results:

• No significant reduction in hunger was observed after virtual meals, unlike real meals.
• Food intake did not differ significantly between virtual and real meals.
• Virtual meals were consumed faster, with shorter durations and higher eating rates, though some chewing and biting occurred.

Conclusions:

• Virtual meal consumption does not appear to significantly reduce hunger in healthy individuals.
• The virtual meal methodology does not fully replicate real-life eating behaviors.
• Virtual meals can still stimulate some basic eating actions like chewing and biting.