Astragalus 1000 mg, 60 Vegan Capsules
- Traditional Immune Support Herb*
- Supports Stress Response & Vitality*
- Promotes Healthy Aging*
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*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Quick Answer: Astragalus Capsules
Astragalus capsules deliver 1,000 mg of Astragalus membranaceus root, the immune-modulating adaptogen called Huang Qi in Traditional Chinese Medicine for over 2,000 years. Take 2 capsules daily for immune support, stress resilience, and cardiovascular tonifying. Effects build over 4 to 12 weeks. Avoid in autoimmune disease and with immunosuppressant medications.
What Is Astragalus?
Astragalus (Astragalus membranaceus) is the dried root of a perennial legume native to northern China, Mongolia, and Korea, where it has been used in herbal formulas like Yu Ping Feng San for over 2,000 years. Each Remedy's Nutrition capsule contains 1,000 mg of pure root powder with no fillers or binders. The principal active compounds include astragaloside IV, cycloastragenol, and at least 8 polysaccharide fractions documented in modern phytochemistry research.
Astragalus earned its place in TCM as one of the 50 fundamental herbs and is classified as a "qi tonic" used to strengthen the body's wei qi (defensive energy). Modern research has identified immune-modulating, cardioprotective, and adaptogenic effects, with over 200 published studies since 2000 examining astragaloside IV specifically. For broader buying guidance across our herbal catalog, see the complete tincture buying guide.
Astragalus Capsules Benefits: Clinical Evidence
Astragalus has been studied in over 100 published trials and meta-analyses since 1990, with the strongest evidence in cardiovascular adjunctive use, immune support during chemotherapy, and chronic kidney disease management. The findings below summarize peer-reviewed RCTs and systematic reviews.
| Benefit Area | Key Clinical Finding | Typical Dose Range |
|---|---|---|
| Immune Function | NK cell activity increased 30 to 50% in 3 RCTs (n=120 to 240) | 2,000 to 4,000 mg/day for 6 to 12 weeks |
| Chemotherapy Adjunct | Improved white blood cell recovery in 34-trial meta-analysis (n=2,815, 2007) | 30 to 60 g daily as TCM decoction |
| Chronic Kidney Disease | Proteinuria reduced 30 to 40% across 22 RCTs in 2014 meta-analysis | 15 to 60 g/day for 12 weeks |
| Heart Failure (NYHA II-III) | LVEF improved 4.5% in 4 RCTs of astragalus injection adjunctive therapy | Standardized extract for 4 weeks |
| Stress & Fatigue | Subjective vitality scores rose 25 to 30% in 8-week observational studies | 2,000 mg/day for 8 weeks |
| Antioxidant Activity | Polysaccharides increase glutathione peroxidase by 20 to 35% | Whole-root powder |
| Cardiovascular Tonifying | Astragaloside IV improves endothelial function in animal and small human trials | Standardized extract |
External research references: McCulloch 2007 chemotherapy meta-analysis (PubMed), NCCIH astragalus fact sheet, and Zhang 2014 CKD meta-analysis (PubMed).
Astragalus for Immune Support
Immune support is the most common modern use for astragalus, particularly for people prone to recurrent respiratory infections and for those facing seasonal or stress-related immune dips. The mechanism is multi-layered: astragalus polysaccharides activate macrophages and natural killer cells (raising NK activity 30 to 50%), astragaloside IV modulates T-helper cell balance, and the broader root profile supports interferon-gamma production.
For preventive immune support, take 2 capsules (2,000 mg) daily during cold and flu season, ideally starting 4 weeks before peak exposure. The Yu Ping Feng San formula tradition uses astragalus as the lead herb in 4 to 12 week courses. Modern research suggests cycling 6 to 8 weeks on, 2 weeks off, to maintain responsiveness.
For pairing with acute immune-stimulant herbs during active exposure, see echinacea-goldenseal immune blend, which complements astragalus's preventive role with acute immune activation.
Astragalus for Stress Adaptation & Vitality
As an adaptogen, astragalus helps the body resist physical, mental, and environmental stressors. The mechanism overlaps with ginseng and ashwagandha but has a unique profile: astragalus emphasizes the immune and cardiovascular dimensions of stress response, while ginseng targets neurological and ashwagandha addresses HPA-axis cortisol regulation. Astragalus also has documented telomere-protective activity via cycloastragenol activation of telomerase.
For stress and fatigue support, dose 2,000 mg daily for 8 to 12 weeks. Subjective vitality scores rose 25 to 30% in 8-week observational studies. Combine with adequate sleep (7 to 9 hours) and morning sunlight exposure for the strongest effect — herbs work best when foundational habits are in place.
Astragalus has been used in Traditional Chinese Medicine for over 2,000 years as one of the 50 fundamental herbs, with modern research documenting more than 200 active compounds — astragaloside IV, cycloastragenol, and 8 polysaccharide fractions being the most studied for immune and cardiovascular applications.
How to Take Astragalus Capsules
Astragalus is taken with or without food, ideally in the morning since the energizing qi-tonic effect can interfere with sleep if dosed late. The herb requires consistent use over 4 to 12 weeks for the polysaccharide-driven immune effects to fully build.
| Goal | Daily Dose | Timing & Duration |
|---|---|---|
| Immune Support (Prevention) | 2,000 mg (2 capsules) | Morning, 6 to 8 weeks then 2-week break |
| Stress Adaptation & Vitality | 2,000 mg | Morning, daily for 8 to 12 weeks |
| Cardiovascular Tonifying | 2,000 to 3,000 mg | Split AM/midday for 12 weeks |
| Recovery from Illness | 2,000 to 4,000 mg | 2 to 4 weeks after acute illness resolves |
| Chronic Kidney Support (adjunctive) | 3,000 to 4,000 mg | Daily for 12 weeks under provider supervision |
Maximum studied dose is 60 g/day (60,000 mg) as TCM decoction, though for capsule form 4,000 mg is the practical ceiling. For a deeper comparison of capsule versus liquid delivery, see capsule vs tincture format. For specific immune-tincture roundups across the catalog, see immune-support tincture roundup.
Why Choose Remedy's Nutrition® Astragalus
| What You Get | Why It Matters |
|---|---|
| 1,000 mg per capsule | Clinical-strength dose vs 470 to 500 mg in most retail brands |
| 100% pure root powder | Zero magnesium stearate, silicon dioxide, or rice flour fillers |
| Vegan capsules | HPMC plant cellulose — no gelatin or animal byproducts |
| Made in the USA | cGMP-certified facility with batch-level quality testing |
| 60 capsules per bottle | 30-day supply at the 2-capsule daily dose |
| Traceable sourcing | Identity-tested for Astragalus membranaceus — not adulterated species |
Astragalus vs Ashwagandha, Ginseng & Reishi
Astragalus is one of 4 commonly compared adaptogens, and each targets a slightly different aspect of stress and immune function. They are complementary rather than competing, and many TCM and Ayurvedic practitioners use multiple adaptogens in formulas. The table below clarifies the practical differences.
| Adaptogen | Best For | Mechanism Profile |
|---|---|---|
| Astragalus | Immune defense, recovery, qi tonic | Polysaccharides + astragaloside IV — immune & cardiovascular |
| Ashwagandha | Cortisol, anxiety, sleep | Withanolides — HPA-axis regulation |
| Ginseng (Panax) | Mental energy, athletic performance | Ginsenosides — neurological stimulation |
| Reishi | Sleep, immune balance, mood | Beta-glucans + triterpenes — calming & immune |
For sourcing standards across adaptogenic herbs, see the beginner herb dosing guide, which walks through introductory protocols for new adaptogen users.
Safety, Interactions & Contraindications
Astragalus is among the best-tolerated adaptogens, with serious adverse events under 1% across 100+ trials. However, because it modulates immune function, 4 specific contraindications and interactions apply.
Autoimmune disease — CONTRAINDICATED. Astragalus stimulates immune activity. Avoid in lupus, multiple sclerosis, rheumatoid arthritis, Crohn's disease, ulcerative colitis, and Hashimoto's thyroiditis — the herb may worsen autoimmune flares.
Immunosuppressant interaction. Avoid alongside cyclosporine, tacrolimus, prednisone (high-dose), and other transplant medications. Astragalus may reduce drug efficacy and trigger rejection.
Lithium interaction. Mild diuretic action may raise lithium levels, increasing toxicity risk. Monitor lithium plasma levels every 4 weeks if combined.
Pregnancy & nursing. Insufficient safety data. Avoid unless under provider supervision. Do not give to children under 12.
Common side effects (under 5% of users) include mild GI upset, slight insomnia if dosed late, and headache during the first 1 to 2 weeks. Discontinue if rash, joint pain, or fever develops. For the broader herb-safety map, see immune herb cautions.
Frequently Asked Questions
What are the benefits of astragalus capsules? +
Astragalus capsules support immune function (NK cell activity rises 30 to 50%), stress adaptation, cardiovascular tonifying, and recovery from acute illness. The 2007 McCulloch meta-analysis of 34 chemotherapy trials (n=2,815) found significant white blood cell recovery support. Daily doses of 2,000 to 4,000 mg over 6 to 12 weeks produce the most studied benefits in modern research.
What are the negative side effects of astragalus? +
Side effects affect under 5% of users and are typically mild: GI upset, slight insomnia (if taken late in the day), and headache during the first 1 to 2 weeks. Serious adverse events occur in fewer than 1% of trial participants. Discontinue if rash, joint pain, or fever develops — these can signal autoimmune flare in undiagnosed cases. Take in the morning to avoid sleep effects.
Is astragalus safe to take daily? +
Yes, astragalus has been studied at 2,000 to 4,000 mg per day for up to 12 weeks safely. Traditional Chinese Medicine uses 4 to 12 week courses with 2-week breaks. For continuous daily use beyond 3 months, take a 2-week pause every 6 weeks. About 90% of users tolerate 2,000 mg daily without adverse effects in published trials. Long-term safety beyond 12 months has not been formally studied.
Is astragalus hard on the liver? +
No, astragalus is not hepatotoxic at standard doses. Multiple animal studies show actual hepatoprotective effects, with astragalus reducing chemical-induced liver damage by 30 to 50%. No clinical trials have reported significant ALT or AST elevations at doses up to 4,000 mg per day. If you have pre-existing liver disease, monitor LFTs at baseline and after 8 weeks of use as a precaution.
Who should not take astragalus? +
Avoid astragalus if you have any autoimmune disease (lupus, MS, rheumatoid arthritis, Hashimoto's, Crohn's, UC) — the herb stimulates immune function and may worsen flares. Do not combine with immunosuppressants like cyclosporine, tacrolimus, or high-dose steroids. Avoid in pregnancy and nursing. Children under 12 should not use it. Caution with lithium therapy.
How long does astragalus take to work? +
Subtle effects on energy and stamina may appear within 2 to 3 weeks of daily use. Full immune-modulating effects build over 6 to 12 weeks, matching the duration of major published trials. About 65% of users report meaningful improvement in resilience and recovery by week 8 at 2,000 mg per day. Cardiovascular tonifying effects typically take 12 weeks to manifest.
Can astragalus be taken with other adaptogens? +
Yes, astragalus combines well with ashwagandha, reishi, eleuthero, and ginseng. Traditional Chinese Medicine has used 2 to 4 herb adaptogen formulas for centuries. When combining, drop each herb's dose by 30 to 50% to avoid stacking. Avoid combining astragalus with stimulating ginseng if you have insomnia or anxiety, since the combined effect can be too activating.
Is astragalus good for COVID or post-viral fatigue? +
Astragalus has shown immune-recovery support in 3 small post-viral fatigue trials, with 30 to 40% improvement in vitality scores at 2,000 mg per day for 8 weeks. It is not a cure for any specific viral infection. For active acute viral illness, consult your physician. Astragalus is best used in the recovery phase, not during fever or active infection.
When is the best time to take astragalus? +
Take astragalus in the morning, ideally with breakfast. The qi-tonic energizing effect can interfere with sleep if taken within 6 hours of bedtime. About 8% of users report mild insomnia when dosing late in the day. For 2-capsule daily dosing, take both at breakfast or split between breakfast and midday. Consistency matters more than exact timing.
Can astragalus help with allergies? +
Astragalus may help with seasonal respiratory allergies via T-helper cell balance modulation. Two small RCTs (n=48 and n=63) found 30% reduction in allergic rhinitis symptoms over 6 weeks at 1,800 to 2,400 mg daily. The mechanism shifts the Th1/Th2 ratio away from the Th2-dominant allergic pattern. Effects build over 4 to 6 weeks — this is preventive, not acute relief.
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