Astragalus

Astragalus (Astragalus membranaceus) is a perennial plant native to northern and eastern China, Mongolia, and Korea, prized for centuries in Traditional Chinese Medicine (TCM). Its root is traditionally used as a tonic to boost vitality, stamina, and the body’s resistance to stress. Modern research has explored astragalus for its adaptogenic, immunomodulatory, antioxidant, and anti-inflammatory properties, with studies suggesting potential roles in supporting immune function, cardiovascular health, and metabolic balance. The herb’s active compounds, including polysaccharides, flavonoids, and saponins, are believed to underpin its wide-ranging health effects.

Key Facts

• Astragalus root is rich in polysaccharides, saponins (notably astragaloside IV), and flavonoids, which contribute to its biological activity.
• It is considered an adaptogen, helping the body resist physical, environmental, and emotional stress.
• Astragalus has demonstrated immunomodulatory effects, enhancing immune cell activity and cytokine production in both animal and human studies.
• The herb exhibits antioxidant properties, protecting cells from oxidative stress and supporting tissue health.
• Clinical research suggests astragalus may help regulate blood glucose and support cardiovascular function, though evidence in humans remains limited and mixed.
• Topical astragalus preparations are promoted for wound healing and skin health due to their anti-inflammatory and regenerative effects.

What does the research say about astragalus and its effects on the body?

Research indicates that astragalus may modulate immune responses, reduce inflammation, and provide antioxidant protection, with preclinical and some clinical studies supporting benefits for immune function, metabolic regulation, and cardiovascular health. However, while animal and laboratory research is promising, robust evidence from high-quality human trials is still limited, and more research is needed to confirm its efficacy for specific health conditions.

How is astragalus traditionally used?

In Traditional Chinese Medicine, astragalus is used as a tonic to strengthen qi (vital energy), promote longevity, and support the immune system, often in combination with other herbs. It is also traditionally used to treat fatigue, respiratory infections, and to enhance recovery from illness.

How to consume or apply astragalus?

Astragalus can be consumed as dried root (often boiled into teas or soups), capsules, tablets, liquid extracts, or powders mixed into drinks. For topical use, creams or ointments containing astragalus extract are applied to the skin to aid wound healing or reduce inflammation. Standardised supplements ensure consistent levels of active compounds, and it is generally recommended to take astragalus with meals for better absorption.

Are there any known side effects or precautions when using astragalus?

Astragalus is well tolerated by most people when used at recommended doses, but mild side effects such as gastrointestinal discomfort, rash, or headache can occur in rare cases. It may interact with immunosuppressive drugs, blood thinners, and other medications, and should be avoided by pregnant or breastfeeding women, children, and those with autoimmune diseases unless advised by a healthcare professional. High doses may paradoxically suppress immune function.

How long does it take to see the benefits of astragalus?

Benefits from astragalus are usually gradual, with many people noticing effects such as improved energy or immune resilience after several weeks of consistent use. The time frame can vary depending on the individual’s health status, dosage, and the specific condition being addressed.

What to look for when purchasing astragalus products?

Choose products from reputable brands that specify standardised extract concentrations (such as polysaccharides or astragaloside IV content) to ensure quality and efficacy. Look for third-party testing or certification, and avoid products with unnecessary additives. Always follow dosage instructions and consult a healthcare provider if you have underlying health conditions or are taking other medications.

Medino Recommends:

Can astragalus help with anti-ageing or longevity?

Some research suggests astragalus may support healthy ageing by reducing oxidative stress, modulating immune function, and even slowing telomere shortening, a marker of cellular ageing. While these findings are promising, further clinical studies are needed to confirm its anti-ageing effects in humans.

Is astragalus safe for long-term use?

Astragalus appears safe for most adults when used at recommended doses for up to several months, but long-term safety data is limited. It is important to avoid excessive doses and to consult a healthcare professional for prolonged use, especially if you have chronic health conditions or take prescription medications.

Does astragalus interact with medications?

Yes, astragalus can interact with medications that suppress the immune system, anticoagulants, blood pressure drugs, and lithium, potentially altering their effects or increasing side effects. Always discuss with your doctor or pharmacist before adding astragalus to your regimen if you are on medication.

Written by Gintare Sukyte