500 mg–2 g · vegan · gluten-free · 60 caps
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Astragalus polysaccharide (APS) is the primary bioactive fraction of Astragalus membranaceus root. It is a complex mixture of heteropolysaccharides that activates telomerase, enhances T-cell proliferation and mobilises natural killer cells. APS-standardised extracts contain ≥50% polysaccharides and are distinct from simple astragalus root powder.
APS activates the PI3K/Akt/mTOR signalling pathway, which upregulates telomerase reverse transcriptase (TERT) and extends telomere length in immune cells. It also enhances NK cell cytotoxicity, promotes dendritic cell maturation and increases IL-2 and IFN-gamma production. In bone marrow, APS protects haematopoietic stem cells from radiation-induced telomere depletion by modulating the Hippo/YAP pathway.
Older adults with immunosenescence, people with low NK cell activity, those recovering from radiation or chemotherapy and biohackers seeking telomere support benefit most. It is particularly relevant for adults over 50 experiencing age-related immune decline.
Those with autoimmune diseases should use caution due to immune-stimulating effects. Pregnant or breastfeeding women. People taking immunosuppressants. Side effects: Very well tolerated. Rare mild GI upset, headache or dizziness at high doses. No serious adverse events in clinical trials up to 30 g/day of astragalus decoction.
A plain-English read of the literature behind this supplement. Not a clinical recommendation.
Key citations: PMC11471509 (Astragalus polysaccharide ameliorates bone marrow failure and reverses telomere depletion via Hippo/YAP/TERT pathway — 2025), PMC7826851 (Medicinal Mushrooms review — astragalus polysaccharide immune modulation and telomerase mechanisms), PMC7049272 (Differential immune activating effects of botanical polysaccharides including APS)
SacredBod's longer take on Astragalus Polysaccharide APS — context the structured blocks above don't capture.
Astragalus membranaceus (Huang Qi) is one of the most important herbs in Traditional Chinese Medicine — used for over 2,000 years to strengthen “Wei Qi” (defensive energy) and promote longevity. But the root powder contains hundreds of compounds. The polysaccharide fraction (APS) is where the immune and anti-ageing magic lives.
APS is a complex mixture of arabinose, glucose, rhamnose, galactose and other sugars bound into heteropolysaccharides. These large molecules are not digested for calories — they are recognised by immune cell receptors (TLR4, Dectin-1) and trigger profound immune activation. More remarkably, APS has been shown to activate telomerase — the enzyme that rebuilds the protective caps on chromosomes, effectively reversing cellular ageing in immune cells.
In India, astragalus is not a classical Ayurvedic herb, but it is increasingly available as a modern adaptogenic and immune supplement.
APS operates through multiple validated pathways:
Astragalus is extremely safe. It is a staple of Chinese medicine with a 2,000-year safety record. Key cautions:
Sanskrit/Hindi name: Not applicable — Astragalus membranaceus is native to China and Mongolia and does not appear in Charaka Samhita or Sushruta Samhita. It is a modern import from Traditional Chinese Medicine.
Availability: Astragalus supplements are widely available on Amazon.in:
It is not a Schedule H drug.
Ayurvedic parallel: While not classical Ayurveda, astragalus’s immune and vitality effects align with the “Rasayana” class of rejuvenative herbs. In modern integrative practice, it is often paired with Ashwagandha (Indian ginseng) for combined adaptogenic and immune support. Guduchi provides the classical Ayurvedic immunomodulatory complement.
Traditional use: None in Indian classical medicine. Used in China for over 2,000 years as a Qi tonic for fatigue, immune weakness, wound healing and longevity.
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