Benefits of Astragalus

Evidence-Based Benefits

• Immune enhancement — a 2013 meta-analysis (Defined Health) of 34 RCTs found astragalus-based formulas significantly improved immune parameters (T-cell counts, NK cell activity) in cancer patients receiving chemotherapy
• Cardiovascular protection — Luo et al. (2015) reviewed clinical evidence showing astragaloside IV protects against heart failure by reducing oxidative stress and improving cardiac function
• Telomere support — cycloastragenol (TA-65) activates telomerase, and Harley et al. (2011) showed it improved immune cell telomere length in a pilot human study
• Kidney protection — astragalus polysaccharides have been shown to reduce proteinuria and improve kidney function markers in diabetic nephropathy patients (Li et al., 2011 meta-analysis)
• Anti-inflammatory — astragalosides inhibit NF-κB and reduce TNF-α, IL-1β, and IL-6 production

What the Research Says

Astragalus has a substantial evidence base in Chinese medical literature and growing international recognition. For immune support, a 2013 meta-analysis of 34 RCTs showed significant improvements in immune markers when astragalus was added to chemotherapy regimens. The anti-aging compound cycloastragenol gained attention when Harley et al. (2011) published a pilot study showing telomerase activation and improved immune cell telomere length. For cardiovascular protection, multiple preclinical and early clinical studies support astragaloside IV for heart failure and myocardial ischemia. A limitation is that much of the clinical research uses astragalus in combination with other TCM herbs, making it difficult to isolate its individual contribution.

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