Chaga (Inonotus obliquus)
Mushroom
Also known as: Birch fungus, Inonotus obliquus, King of mushrooms
B
Grade B💊 1-3g extract or 2-6g powder daily🎯 4 primary uses🔗 3 synergies⚠️ Review warnings
Levels upNutrition+50 pts
Overview
Antioxidant-rich fungus from birch trees with immune-modulating and anti-inflammatory properties.
Primary Uses
AntioxidantImmune supportAnti-inflammatoryGut health
Frequently Asked About Chaga (Inonotus obliquus)
How much Chaga (Inonotus obliquus) should I take?
The typical effective range is 1-3g extract or 2-6g powder daily. Individual needs vary based on age, body weight, diet, and goals — start at the lower end and adjust based on response. Always consult a healthcare provider before starting a new supplement.
When is the best time to take Chaga (Inonotus obliquus)?
Morning or afternoon. Consistency matters more than perfect timing — pick a daily anchor (e.g. with breakfast or before bed) and stick with it.
Should I take Chaga (Inonotus obliquus) with food?
Either way.
Does Chaga (Inonotus obliquus) interact with medications?
Yes — known interactions include Blood thinners (may enhance), Diabetes medications (may enhance), and Immunosuppressants. If you take any prescription medication, talk to your doctor or pharmacist before starting Chaga (Inonotus obliquus).
What does Chaga (Inonotus obliquus) pair well with?
Chaga (Inonotus obliquus) stacks well with Reishi, Turkey tail, and Vitamin C — these combinations either improve absorption or work synergistically toward common goals.
Who should not take Chaga (Inonotus obliquus)?
Chaga (Inonotus obliquus) should be avoided or used with caution by people with Kidney disease, Oxalate kidney stones, and Bleeding disorders. Pregnant or breastfeeding women should consult a healthcare provider before use.
What are the side effects of Chaga (Inonotus obliquus)?
Most people tolerate Chaga (Inonotus obliquus) well. The most commonly reported side effects are Rare, well tolerated. Side effects are usually dose-dependent — lowering the dose often resolves them.
Dosage
Typical range
1-3g extract or 2-6g powder daily
Timing
Morning or afternoon
With food
Either way
Duration
Long-term use traditional
Special Populations
Those seeking antioxidant and immune support
Research & Studies
Search the literature now
We haven’t curated landmark studies for Chaga (Inonotus obliquus)yet — one-click into the primary literature here. PubMed (RCTs) is usually the highest-signal starting point.
Search Chaga (Inonotus obliquus) research
Mechanism of Action
- • Extremely high antioxidant content (ORAC)
- • Beta-glucans modulate immunity
- • Betulinic acid from birch host
- • Supports gut microbiome
Evidence Quality
Evidence Grade B
Traditional use with emerging research
Safety & Contraindications
Serious Warnings
- • High oxalate content - kidney stone risk with very high doses
- • May lower blood sugar
Contraindications
- • Kidney disease
- • Oxalate kidney stones
- • Bleeding disorders
Common Side Effects
- • Rare, well tolerated
Pregnancy & Breastfeeding
Insufficient data, avoid
Liver & Kidney Notes
High oxalates - kidney concern with excessive use
Interactions
💊 Medications
- • Blood thinners (may enhance)
- • Diabetes medications (may enhance)
- • Immunosuppressants
🧪 Supplements
- • Synergistic with other mushrooms
🍽️ Food & Alcohol
- • No significant interactions
Stacking & Synergies
Pairs Well With
Avoid Combining With
Blood thinners without monitoring
Best Goal Synergies
AntioxidantImmune support
Buying Guide
What to Look For
- • Wild-harvested from birch
- • Third-party tested
- • Dual extraction
Standardization Markers
Beta-glucan contentBetulinic acidORAC value
Adulteration risk
Moderate (wild-harvested quality varies)
Practical Notes
- • Wild-harvested preferred
- • Hot water extraction traditional
- • Morning use typical
Tags
mushroomantioxidantimmuneadaptogen
More in Mushroom
Other ingredients in the Mushroom category.
Maitake (Grifola frondosa)
Culinary and medicinal mushroom with D-fraction compound studied for immune enhancement and blood sugar support.
Turkey Tail (Trametes versicolor)
Most-researched medicinal mushroom for immune support, particularly studied as adjunct in cancer care.
Last reviewed: June 2026 by the Formulate Research Team. Sources cited above; methodology and scoring criteria published here.
Cite this page
Formulate Research Team. (2026, June). Chaga (Inonotus obliquus) — Evidence-Based Supplement Guide. Formulate Supplement Encyclopedia. https://app.formulate-health.app/learning/supplements/chaga-immune
Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.