Ultra-Processed Diets and Pediatric Acne: Insulin-mTOR Activation and Its Potential Role in Cutaneous Inflammation
Abstract
Acne vulgaris is an inflammatory cutaneous condition that disproportionately affects the pediatric population. While there are several risk factors, emerging evidence suggests that ultra-processed foods (UPFs), as part of Western dietary patterns, may contribute to acne pathophysiology through activation of inflammatory pathways, such as mTORC1. This comprehensive review synthesizes current evidence regarding acne pathogenesis in conjunction with diet-associated inflammatory cascades to better illustrate the potential role of diet as an adjunct to clinical management in pediatric patients. The current literature suggests that increased insulin/IGF-1 levels may contribute to alterations in the skin and gut microbiota. Additionally, components commonly found in UPFs have been proposed to activate the mechanistic target of rapamycin complex (mTORC1) through insulin/IGF-1-dependent and -independent mechanisms, perpetuating inflammatory pathways that give rise to acne pathogenesis. However, the majority of available evidence is derived from adult cohorts; pediatric-specific evidence remains limited. While studies have demonstrated clinical significance in acne severity with dietary interventions, future high-quality studies are required. Through understanding the relationship between diet and acne pathogenesis, future therapeutic and preventative strategies may be developed to improve pediatric acne clinical outcomes.
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