Immune system enhancement and support
Strengthens immune system function and resistance to infections
Astragalus
Premier Chinese immune tonic supporting adaptive immunity, energy, and longevity with potent immunomodulating properties
Scientific nameAstragalus membranaceus
FormulaVarious polysaccharides and saponins
Molecular weightVariable natural compounds g/mol
CASVarious natural compounds
65
absorption score
8
safety / 10
40
USD per month
5
documented interactions
Check it against something
Astragalus with:
- Amylase
- Ashwagandha
- Avocado Oil
- BCAA (Branched-Chain Amino Acids)
- Beetroot Powder
- Beta-Alanine
- Bifidobacterium lactis
- Bifidobacterium longum
- Bovine Collagen
- Caffeine
- Calcium
- Calcium Bone Formula
- Calcium Carbonate
- Casein Protein
- Chicken Collagen
- Choline (Bitartrate)
- Chondroitin Sulfate
- Coconut Oil
- Collagen Peptides
- Comprehensive Immune Support Complex
- Comprehensive Multivitamin-Mineral Complex
- Creatine HCL
- Creatine Monohydrate
- D-Mannose
- DHA
- Electrolyte Blend
- EPA
- Fish Oil (EPA/DHA)
- Folate (5-MTHF)
- Ginger
- Iron Fumarate
- Iron Sulfate
- Joint Mobility Formula
- Keratin
- Krill Oil
- L-Carnitine
- L-Citrulline
- Lactase
- Lactobacillus acidophilus
- Lactobacillus rhamnosus
- Lipase
- Magnesium Citrate
- Magnesium Glycinate
- Magnesium Oxide
- Marine Collagen
- Melatonin
- Modafinil
- Olive Oil Extract
- Omega-3 + Curcumin + Vitamin D Triple Anti-Inflammatory Formula
- Papain
- Protease
- Saccharomyces boulardii
- Turmeric
- Vitamin B12 (Cyanocobalamin)
- Vitamin B12 (Methylcobalamin)
- Vitamin C (Ascorbic Acid)
- Vitamin C (Sodium Ascorbate)
- Vitamin D3
- Whey Protein
- Zinc Gluconate
Nothing found
75
out of 100
Works better together
Compatible. Timing differs, so follow each supplement's own window.
What it does
mechanism and evidence for each claimEnergy and vitality boost
Traditional qi tonic supporting energy levels and reducing fatigue
Respiratory health and seasonal support
Supports respiratory health and seasonal immune challenges
Cardiovascular health support
Supports heart health and cardiovascular function
Anti-aging and longevity support
Traditional longevity herb supporting healthy aging
Others take these for the same thing
Same goal, different mechanism — check any of them against this one
Probiotics for Autoimmune Disease Support
Gut health & immune modulation
10-100 billion CFU daily
B
60%
Ashwagandha
Stress management & energy
300-600mg
A
75%
Vitamin B12 (Cyanocobalamin)
Energy & nerve support
250-1000 mcg
A
70%
Coenzyme Q10 (CoQ10)
Heart health & cellular energy
100-200mg
A
10%
Vitamin D3
Bone health & immune support
1000-2000 IU
A
85%
Phosphorus
Bone health & energy metabolism
700-1250mg
A
80%
Every pair we checked
12 combinations scored by the engine
Astragalus + Caffeine
No documented interaction either way
No known interaction
70
Astragalus + Creatine Monohydrate
No documented interaction either way
No known interaction
70
Astragalus + Calcium Carbonate
No documented interaction either way
No known interaction
70
Astragalus + Whey Protein
No documented interaction either way
No known interaction
70
Astragalus + Lactase
No documented interaction either way
No known interaction
70
Astragalus + Bovine Collagen
No documented interaction either way
No known interaction
70
Astragalus + DHA
No documented interaction either way
No known interaction
70
Astragalus + Turmeric
No documented interaction either way
No known interaction
70
Astragalus + Fish Oil (EPA/DHA)
No documented interaction either way
No known interaction
70
Astragalus + Vitamin D3
Enhanced immune system support and antioxidant protection
Works better together
75
Astragalus + Panax Ginseng
Enhanced adaptogenic and energy-supporting effects
Works better together
75
Astragalus + Echinacea
Comprehensive immune system enhancement
Works better together
80
Dosage
Daily1000-3000mg
Immune enhancement1000-3000mg daily
Energy vitality1000-2000mg daily
Respiratory support1500-3000mg daily
Longevity support1000-2000mg daily
Before you take it
VeganYes
When to expect it
First Effects2-6 weeks for energy boost and initial immune benefits
Peak Benefits8-16 weeks for sustained immune enhancement and vitality support
Deficiency DevelopmentNot applicable - herbal supplement
Toxicity OnsetRare, mainly autoimmune considerations
How to measure it
MarkerComplete blood count, immune markers (IgG, IgA), inflammatory markers
OptimalEnhanced immune cell counts, improved antibody levels
Deficient belowNot applicable for herbal supplement
FrequencyEvery 6-12 months for immune function monitoring
What people actually reported to the FDA
CAERS, 15 reports naming it as the suspectMost reported effects
Named as the suspect
15 reports
of 27 that mention it at all
Serious outcome
76%
hospitalisation, emergency room or worse
Other Serious or Important Medical Event9
Hospitalization5
Other Serious Outcome4
Reports are voluntary and unverified — they record what someone experienced while taking something, not what the compound caused. Counts skew towards products people take a lot of, and a serious outcome is more likely to be reported than a mild one, so these are not rates. How we filter them →
What actually reaches you
The label counts the carrier, your body does not
Absorption
High 65 of 100 · absorbs well relative to other forms
Delivered daily
1300 mg
Cost per 100 mg delivered
$0.10 comparative — uses the absorption score, not a measured percentage
Works better with
+
Vitamin C
Enhanced immune system support and antioxidant protection
Both support immune function through complementary pathways · level C
+
Echinacea
Comprehensive immune system enhancement
Synergistic immune-stimulating effects for acute and chronic support · level C
+
Ginseng
Enhanced adaptogenic and energy-supporting effects
Both are premier adaptogenic tonics in Traditional Chinese Medicine · level CWhat not to take with Astragalus
!
Immunosuppressive Substances
May counteract immunosuppressive effects
Immune-enhancing effects oppose immunosuppression · high significance
!
Excessive Alcohol
Alcohol may reduce immune benefits
Alcohol suppresses immune function that astragalus supports · moderate significanceMedication interactions
Discuss these with a pharmacist before combiningMay reduce effectiveness of immunosuppressive drugs
What to do: Avoid concurrent use
May affect lithium levels
What to do: Monitor lithium levels
May affect blood sugar levels
What to do: Monitor blood glucose
Available forms
Astragalus Root Extract (Standardized Polysaccharides): Excellent immune support, Energy enhancement, Good research, Traditional validation
Food sources
Astragalus root (dried)
Traditional herbal preparation · 60
Astragalus tea
Moderate polysaccharide extraction · 55
Standardized extracts
Concentrated polysaccharides and saponins · 65
Not found in common foods
Specific herb preparation required · N/A
Too little
- Not applicable (herbal supplement, not essential nutrient):
- General symptoms addressed by astragalus:
- Frequent infections and poor immune function
- Chronic fatigue and low energy levels
- Poor recovery from illness or stress
- Seasonal immune challenges and respiratory issues
- Signs of premature aging and low vitality
Too much
- Generally safe with some considerations:
- Immune overstimulation in autoimmune conditions
- Mild digestive upset with high doses
- Possible drug interactions with immunosuppressants
- Excellent long-term safety profile
Who benefits most
immune-enhancement-frequent-illness
Premier immune system enhancement for frequent infections and low immunity
1000-3000mg daily (or 9-30g dried root)
energy-fatigue-vitality
Traditional qi tonic for energy enhancement and fatigue reduction
1000-2000mg daily
respiratory-seasonal-support
Respiratory health and seasonal immune challenge support
1500-3000mg daily
longevity-anti-aging
Traditional longevity support and healthy aging enhancement
1000-2000mg daily
cardiovascular-heart-health
Traditional cardiotonic support for heart health and circulation
1000-2000mg dailyWhere to buy it
Look for Astragalus at 1000-3000mg per serving. The form that matters here is Astragalus Root Extract (Standardized Polysaccharides).
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What else affects it
Beyond other supplements
!
Excessive alcohol
Alcohol may reduce immune benefits
Alcohol suppresses immune function that astragalus supportsHow it works
- Polysaccharides enhance immune cell proliferation and activity, particularly T-cells and macrophages
- Saponins support immune system regulation and enhance antibody production
- Adaptogenic compounds support cellular energy production and stress resistance
- Cardiotonic effects improve heart function and circulation
- Antioxidant properties protect immune cells and support healthy aging
- Immunomodulating effects balance immune response rather than just stimulating
Key findings
what the evidence supports- Strong evidence for immune system enhancement and infection resistance
- Good research on energy enhancement and fatigue reduction
- Promising longevity and anti-aging research
- Important contraindications for autoimmune conditions and immunosuppressive therapy
Sources: NIH Examine.com · data reviewed 2026-08-02
Compiled by Denis, who maintains this database and holds no medical qualification — every figure here is sourced or derived, never asserted. How we calculate it →
Common questions
What are the benefits of Astragalus?
Documented effects: Immune system enhancement and support; Energy and vitality boost; Respiratory health and seasonal support; Cardiovascular health support. Strengthens immune system function and resistance to infections
How much Astragalus should you take per day?
The common daily range is 1000-3000mg. By goal — immune enhancement: 1000-3000mg daily; energy vitality: 1000-2000mg daily; respiratory support: 1500-3000mg daily; longevity support: 1000-2000mg daily.
When is the best time to take Astragalus?
With meals. First effects are typically reported within 2-6 weeks for energy boost and initial immune benefits.
What are the side effects of Astragalus?
At excessive doses: Generally safe with some considerations:, Immune overstimulation in autoimmune conditions, Mild digestive upset with high doses, Possible drug interactions with immunosuppressants, Excellent long-term safety profile. Safety rating at normal doses is 8 out of 10.
What should you not take with Astragalus?
Separate it from Immunosuppressive Substances, Excessive Alcohol by two to four hours. May counteract immunosuppressive effects
Does Astragalus interact with medications?
Documented interactions with immunosuppressive-medications, lithium, diabetes-medications. Discuss these with a pharmacist before combining.
How do you know if you need Astragalus?
The marker is Complete blood count, immune markers (IgG, IgA), inflammatory markers, optimal range Enhanced immune cell counts, improved antibody levels. Common deficiency signs: Not applicable (herbal supplement, not essential nutrient):, General symptoms addressed by astragalus:, Frequent infections and poor immune function, Chronic fatigue and low energy levels.