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Selected dravya nodes show potentially beneficial signals, but confidence in effect magnitude remains limited by heterogeneity, small-study effects, and reporting quality.

• Evidence volume was concentrated in Bacopa monnieri (Brahmi) for cognition and Withania somnifera (Ashwagandha) for stress and sleep outcomes.
• Meta-analysis was feasible for three primary strata: W. somnifera (Ashwagandha) versus placebo on perceived stress and sleep quality, and curcumin versus placebo on depression severity.
• Reported adverse events were usually mild but inconsistently captured.

By integrating clinical and molecular evidence, this study bridges the gap between traditional empirical knowledge and modern pharmacological understanding.

• GQD significantly improved insulin resistance (HOMA-IR), fasting blood glucose (FBG), and glycated hemoglobin (HbA1c) compared to controls, with effect sizes of SMD = -1.24, -1.15, and -0.67, respectively (all P < 0.001).
• By integrating clinical and molecular evidence, this study bridges the gap between traditional empirical knowledge and modern pharmacological understanding.
• The findings not only provide a higher level of evidence-based support for GQD in treating T2DM but also, through its innovative dual-validation methodology, support a mechanism involving the direct activation of the SIRT1/AMPK signaling pathway.

Future directions include prospective validation and dynamic network modeling.

• The FXR agonist obeticholic acid prevents these effects preclinically, but systemic toxicity limits clinical use.
• Conclusion and significance We propose personalized risk stratification integrating demographics, microbial signatures, and metabolic biomarkers.
• Interventions include gut-restricted FXR agonists, probiotics, and Mediterranean diet.

Individual clinical outcomes are further modulated by genetic polymorphisms and gut microbiota variability, which influence the activation of the cellular Nrf2 antioxidant defense pathway.

• This review aims to present the main bioactive components of coffee, their biological effects, mechanisms of action, and the influence of preparation methods and individual variability on metabolic outcomes in common chronic diseases.
• The data are synthesized from clinical, prospective, and interventional studies to examine how processing variables and biological metabolism influence the health-promoting potential of coffee antioxidants.
• Brewing methods like hot filtration optimize the extraction of these antioxidants.