Mushrooms ·
Chaga mushroom benefits, and the one caution most guides skip
The short answer
Chaga is a fungus that grows on birch trees and is used for its antioxidant polyphenols and beta-glucans, mainly as a coffee-like tea or extract. Most research is laboratory-based. It is very high in oxalates, so it isn't for daily high doses or for people prone to kidney stones.
What chaga is
Inonotus obliquus forms a black, cracked mass on birch in cold northern forests. Its inside is orange-brown and woody. It's traditionally brewed as tea in Russia and Scandinavia.
Why people take it
- Antioxidants: chaga is rich in polyphenols and melanin pigments.
- Immune support: beta-glucans, as with other mushrooms.
- Coffee alternative: brewed chaga has a dark, earthy taste with no caffeine.
The oxalate caution
Chaga contains a lot of oxalate. Case reports link heavy, long-term use to kidney problems. Keep to label doses, don't combine with other high-oxalate supplements, and skip it if you have kidney issues. It may also affect blood sugar and clotting, so check with a clinician if you take related medications.
Dosage
Extract capsules commonly provide around 1 g a day. As tea, a teaspoon of ground chaga per cup.
Questions
- Does chaga have caffeine?
- No.
- Can I take chaga every day?
- At label doses many people do, but because of oxalates it's sensible to take breaks and avoid high amounts.
From the shop
This article is for general information and isn't medical advice. These statements have not been evaluated by the Food and Drug Administration. Products are not intended to diagnose, treat, cure or prevent any disease. Talk to a healthcare professional before starting a supplement, especially if you are pregnant, nursing or take medication.