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    The Role of Gut Microbiota in Postmenopausal Women: Implications for Lipid Metabolism and Targeted Nutritional Interventions
    (2026)
    Reytor González, Claudia  
    ;
    Ludovica Verde
    ;
    Giuseppe Annunziata
    ;
    Náthaly Mercedes Román-Galeano
    ;
    Raquel Horowitz
    Purpose of Review: This review explores the complex interplay between menopause, estrogen decline, lipid metabolism, and gut microbiota alterations. It highlights the physiological and metabolic changes that predispose postmenopausal women to dyslipidemia and increased cardiovascular disease risk, with particular emphasis on the emerging role of the gut microbiota in modulating lipid homeostasis and inflammatory pathways. In addition, it examines the therapeutic potential of microbiota-targeted nutritional strategies to restore metabolic balance and improve cardiometabolic outcomes in postmenopausal women. Recent Findings: Recent clinical and experimental evidence indicates that menopause-related hormonal changes and aging are associated with gut microbiota dysbiosis, which may contribute to adverse lipid profiles through mechanisms involving bile acid metabolism, short-chain fatty acid production, and low-grade systemic inflammation. Associations between specific microbial taxa and lipid metabolic patterns have been reported; however, findings remain heterogeneous and causal relationships are difficult to establish due to confounding factors such as diet, lifestyle, and medication use. Nutritional interventions aimed at modulating the gut microbiota—including Mediterranean, plant-based, and DASH dietary patterns, increased dietary fiber intake, and supplementation with prebiotics, probiotics, polyphenols, phytoestrogens, and omega-3 fatty acids—have shown potential to improve lipid profiles and cardiometabolic risk markers. Summary: The gut microbiota emerges as a relevant contributor to menopause-associated dyslipidemia and cardiovascular risk. While microbiota-targeted nutritional strategies are promising, further longitudinal and interventional studies are needed to clarify causal pathways and identify clinically actionable microbial signatures. Integrating microbiome-informed nutritional approaches into clinical practice may represent a future strategy to improve cardiometabolic health in postmenopausal women. © The Author(s) 2026.
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    Nutrition and longevity – diet in centenarians
    (2026)
    Evelyn Frias-Toral
    ;
    Reytor González, Claudia  
    ;
    Giuseppe Annunziata
    ;
    Ludovica Verde
    ;
    Emilia Jimenez-Flores
    Background: Nutrition plays a central role in the biological mechanisms that shape aging, health span, and longevity. Micronutrients—including vitamins, trace elements, and polyphenols—support genomic stability, mitochondrial integrity, and antioxidant defense, while dietary patterns rich in plant-based foods modulate inflammation, metabolic regulation, and epigenetic processes. Centenarian populations consuming Mediterranean, Okinawan, Nordic, and Nicoyan diets offer a natural model for understanding how nutrient-rich, minimally processed foods, moderate caloric intake, and balanced lifestyles interact with molecular pathways to extend functional life. Main Body: This review synthesizes current evidence on how micronutrients influence DNA repair, oxidative stress reduction, and mitochondrial protection, particularly through the actions of vitamins C and E, niacin-dependent PARP activity, folate-mediated methylation, and metal cofactors involved in antioxidant enzymes. Plant-based diets rich in fiber and polyphenols enhance microbial diversity and promote beneficial taxa such as Akkermansia and Bifidobacterium, supporting gut barrier integrity and immune balance. Caloric restriction and intermittent fasting activate nutrient-sensing pathways, including AMPK and sirtuins, reduce mTOR activity, and stimulate autophagy, collectively improving cellular resilience. Findings from centenarian regions highlight the convergence of lifestyle, nutrition, and cultural practices that reduce systemic inflammation, maintain metabolic flexibility, and support healthy aging trajectories. Conclusions: Diet emerges as a decisive modifiable determinant of lifespan and health span. The convergence of molecular nutrition, microbiome composition, and traditional dietary habits underlies the exceptional longevity observed in centenarian populations. Future research should integrate nutrigenomics, metabolomics, and microbiome profiling to clarify causal mechanisms and guide precision nutrition strategies for aging societies. © The Author(s) 2026.
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