Most individuals with obesity become so before age 35 and adolescent's unhealthy dietary patterns, specifically high intake of ultra-processed foods and poor overall diet quality, may contribute to energy overconsumption and weight gain. The overall objective of this research is to establish proof-of-concept for altered reward processing measured by brain response to ultra-processed foods, an increase in ad libitum energy intake, and adverse effects on executive function in response to an ultra-processed diet (81% total energy) compared to a diet emphasizing minimally processed foods in individuals aged 18-25 years.
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Change in Brain Response From Baseline to 2-weeks Post High UPF or 2 Weeks no UPF Diet
Timeframe: 4 measurements (pre/post 2-week UPF diet, pre/ post 2-week no UPF diet)