Ultra-Processed Food Addiction (UPFA)

Ultra-processed food addiction (UPFA) is a proposed clinical presentation in which repeated intake of ultra-processed foods (UPFs) — industrial formulations high in refined carbohydrates and added fats, largely corresponding to NOVA Group 4 — produces a compulsive, reward-driven pattern of eating that meets the DSM-5 behavioral criteria for a substance-use disorder (SUD) when applied specifically to UPFs (Gearhardt & DiFeliceantonio, 2023, Addiction; Gearhardt et al., 2023, BMJ).

It is operationalized primarily through the Yale Food Addiction Scale 2.0 (YFAS 2.0), which requires endorsement of at least two of the 11 DSM-5 SUD symptoms — such as impaired control, craving, tolerance, withdrawal, and continued use despite harm — together with clinically significant impairment or distress (LaFata et al., 2024, Current Obesity Reports).

Unlike earlier, broader conceptions of “food addiction,” UPFA is substance-specific: its addictive potential is attributed to the pharmacokinetic properties of UPFs themselves — artificially high doses of rewarding ingredients delivered at an unnaturally rapid rate of absorption — which parallel the “dose × rate” profile of recognized addictive substances such as nicotine, and which minimally processed foods do not exhibit (Gearhardt & DiFeliceantonio, 2023).

Neurobiologically, UPFA is associated with SUD-like alterations across the brain–gut–microbiome axis, including dopaminergic sensitization, disrupted reward signaling, dysregulated hunger and satiety hormones, and UPF-linked shifts in gut microbiota (LaFata et al., 2024). UPFA is not a formal DSM-5 or ICD-11 diagnosis but a research and clinical construct with converging validity — estimated at ~14% of adults and ~12% of children across 36 countries — and should be described by mental health practitioners in research-construct terms, with dietary intervention coordinated through appropriately credentialed nutrition or medical providers (Gearhardt et al., 2023, BMJ).