Astragalus membranaceus root extract
Also known as: Astragalus membranaceus (Fisch.) Bunge, Huang Qi, Astragalus, Astragalus membranaceus
Overview
Astragalus membranaceus, commonly known as Astragalus or Huang Qi, is a plant widely utilized in Traditional Chinese Medicine (TCM) for its diverse health benefits. It is primarily recognized for its potential to enhance immune function, acting as an adaptogen that helps the body cope with various stressors. Research indicates its significant antioxidant and anti-inflammatory properties, contributing to its therapeutic effects. The plant's roots are the primary part used in supplements, available in various forms such as capsules, extracts, and teas. While the body of research on Astragalus is growing, it presents a moderate level of maturity, with some high-quality studies supporting its efficacy in specific conditions, alongside areas requiring further investigation to confirm broader applications and mechanisms.
Benefits
Astragalus offers several evidence-based benefits, particularly when used as an adjunct therapy. It has shown promise in improving kidney function, with a meta-analysis indicating lower serum creatinine levels in patients receiving Astragalus alongside Western medicine (SMD = 0.64, 95% CI: 0.27–1.01, P < 0.001). This suggests a significant benefit for individuals with kidney conditions. Furthermore, in cancer care, Astragalus has been found to enhance tumor response rates and improve the quality of life for patients undergoing chemotherapy, potentially by reducing side effects. While the methodological quality of some studies in this area is low, the consistent findings across multiple studies suggest a notable clinical impact. Preliminary animal studies also suggest its potential in spinal cord injury recovery, showing significant functional improvement, though human trials are needed to confirm this effect. Additionally, it may improve outcomes in diabetic nephropathy when combined with Panax notoginseng. These benefits are particularly relevant for patients with chronic kidney disease, those undergoing cancer treatment, and potentially individuals with neurological injuries.
How it works
Astragalus exerts its therapeutic effects primarily through its anti-inflammatory, antioxidant, and immune-modulating properties. Its active compounds, particularly astragalus polysaccharides, triterpenoids, and flavonoids, interact with various biological pathways. It influences the immune system by promoting the activity of immune cells like macrophages and T-lymphocytes, enhancing the body's defense mechanisms. In the kidneys, it may help protect against damage and improve function by reducing inflammation and oxidative stress. Its antioxidant capacity helps neutralize free radicals, protecting cells from damage. The specific molecular targets are still being elucidated, but its broad interaction with immune and inflammatory pathways contributes to its systemic benefits, including potential effects on the nervous system and cellular repair processes.
Side effects
Astragalus is generally considered safe for most individuals when used appropriately. Common side effects are rare but can include mild gastrointestinal issues such as bloating or diarrhea. Allergic reactions, though uncommon, are possible and may manifest as skin rashes or itching. There are no well-documented rare or severe side effects. However, caution is advised regarding potential drug interactions. Astragalus may interact with immunosuppressant medications, as it can stimulate the immune system, potentially counteracting the effects of these drugs. It may also interact with blood thinners due to its potential effects on blood coagulation, although this is less established. Contraindications include pregnancy and breastfeeding due to insufficient safety data; therefore, its use is not recommended in these populations. Individuals with autoimmune diseases, such as lupus or rheumatoid arthritis, should use Astragalus with caution and under medical supervision, as its immune-stimulating properties could theoretically exacerbate their conditions. Always consult a healthcare provider before starting Astragalus, especially if you have pre-existing medical conditions or are taking other medications.
Dosage
The optimal dosage for Astragalus can vary depending on the specific condition being addressed and the form of the supplement. Generally, recommended dosages range from 500 mg to 2 grams of dried root extract per day. For specific therapeutic uses, higher doses might be employed under professional guidance. There is no clearly defined maximum safe dose, but adherence to recommended ranges is advised. To minimize potential gastrointestinal discomfort, it is often recommended to take Astragalus with meals. The form of the supplement, whether capsules, tinctures, or powdered extracts, can influence absorption and bioavailability, with standardized extracts often providing more consistent potency. For chronic conditions, consistent daily intake is typically recommended to achieve and maintain benefits, which may take several weeks to become noticeable. No specific cofactors are documented as being required for its efficacy.
FAQs
Can Astragalus be taken with other medications?
Astragalus can interact with certain medications, particularly immunosuppressants and potentially blood thinners. Always consult your healthcare provider before combining Astragalus with other drugs to avoid adverse interactions.
How long does it take to see benefits from Astragalus?
The time to observe benefits from Astragalus can vary depending on the condition being treated and individual response. For chronic conditions, consistent use over several weeks to months may be necessary before noticeable improvements occur.
Is Astragalus safe for long-term use?
Astragalus is generally considered safe for long-term use in healthy individuals at recommended dosages. However, individuals with specific health conditions or those on medication should consult a healthcare professional for personalized advice.
Can Astragalus cure diseases?
Astragalus is not a cure-all. While it shows promise in supporting various bodily functions and improving outcomes in certain conditions, it should be viewed as a complementary therapy rather than a standalone cure for diseases.
What is the best form of Astragalus to take?
Astragalus is available in various forms, including capsules, tinctures, and powdered extracts. The 'best' form depends on individual preference and specific needs, but standardized extracts may offer more consistent potency and efficacy.
Research Sources
- https://pmc.ncbi.nlm.nih.gov/articles/PMC11885490/ – This systematic review and meta-analysis investigated the effect of Astragalus on kidney function. It found that Astragalus, when combined with Western medicine, significantly lowered serum creatinine levels in patients, suggesting a beneficial role in kidney health despite heterogeneity among included studies.
- https://pmc.ncbi.nlm.nih.gov/articles/PMC6700271/ – This meta-analysis focused on the use of Astragalus in colorectal cancer patients. It concluded that Astragalus combined with chemotherapy improved tumor response rates and enhanced the quality of life, although the methodological quality of some included randomized controlled trials was low.
- https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2025.1637608/full – This meta-analysis explored the effects of Astragalus on spinal cord injury recovery in animal models. It demonstrated significant functional recovery in rats with spinal cord injuries, highlighting Astragalus's potential in neurological repair, though human studies are needed to confirm these findings.
- https://onlinelibrary.wiley.com/doi/10.1155/2023/2945234 – This source discusses the potential of Astragalus in improving outcomes for diabetic nephropathy when combined with Panax notoginseng. It suggests a synergistic effect of these two herbs in managing complications associated with diabetic kidney disease.
- https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2022.838256/full – This source provides a broader overview of Astragalus's medicinal properties, including its immune-modulating, anti-inflammatory, and antioxidant effects. It highlights the diverse applications of Astragalus in various health conditions, supporting its traditional uses with modern scientific insights.
Supplements Containing Astragalus membranaceus root extract
Re-Built Mass Vanilla Cake Batter
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Re-Built Mass Cookies & Cream
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EBOOST Energy Powder Pink Lemonade
EBOOST

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Infiniti Creations
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Complex Diet Drops
BioSource Labs

ViraKid
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Hawaii Pharm

Huang Qi
Hawaii Pharm