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Metabolic disorders such as obesity, type 2 diabetes, and lipid disorders are major health challenges worldwide. There is increasing interest in the role of food-derived antioxidants in the context of metabolic disorders due to their documented antioxidant activity. Antioxidants such as flavonoids and polyphenols neutralize reactive oxygen species and reduce oxidative stress, which can affect cell function and metabolic processes. Anthocyanins, curcumin, and resveratrol exhibit physiological and pharmacological properties such as antioxidant, anti-inflammatory, anti-cancer, anti-obesity, and anti-diabetic effects. The main aim of this systematic review is to comprehensively evaluate and synthesize the current scientific evidence on the role of anthocyanins, curcumin, and resveratrol in the prevention and management of metabolic disorders, with a focus on obesity, type 2 diabetes, and dyslipidemia. Databases such as PubMed and Embase were searched, and the final selection included 105 studies that met the inclusion criteria. The analyzed studies demonstrated that anthocyanin supplementation (up to 320 mg/day) was associated with reductions in inflammatory markers such as IL-6 and TNF-α, improvements in HDL cholesterol, and modest reductions in HbA1c (~0.3-0.5%). Curcumin supplementation was associated with decreases in body weight (up to 0.82 kg), BMI (up to 0.30 kg/m2), triglycerides, total cholesterol, and fasting glucose levels. Resveratrol showed mixed but potentially beneficial effects on insulin sensitivity, oxidative stress markers, and lipid metabolism, although the clinical outcomes remained inconsistent across studies. These findings suggest that the antioxidant effects of anthocyanins, curcumin, and resveratrol may be related to their ability to suppress oxidative stress and inflammatory processes, thereby contributing to improvements in glucose and lipid metabolism. The conclusions from this analysis may contribute to a better understanding of the role of antioxidants in the management of metabolic health and indicate directions for future research in this area.

Abstract licence: CC BY