Skip to content
DE
Botanical

Chaga

Chaga (Inonotus obliquus) is a fungus that grows on birch trees in cold climates and is consumed as tea or in supplements.

Also listed as Inonotus obliquus, Poria obliqua, Polyporus obliquus, Fuscoporia obliqua

LongevityGut HealthHair & SkinOrgan FunctionImmune Support

What it is studied for

The strongest rated effects first. Bars show the size of the effect, the letter grades the evidence, and each rating lists the studies behind it.

Oxidative stressLongevityModerateBNo linked study
Gut healthSmallCNo linked study
Skin InflammationHair & SkinSmallCNo linked study
InflammationSmallCNo linked study
Liver healthOrgan FunctionSmallCNo linked study
Immune SupportSmallCNo linked study
All 7 rated effectsGrouped by health goal, with the publications behind each rating

What is chaga?

Chaga, Inonotus obliquus, grows on birch trees in cold climates and is consumed as tea or supplements. 1

Why people take it

Immune Support23.3%
Energy20.3%
Longevity13.4%
Cognition10.8%
Detox9.1%
Stress & Mood8%

SuppCo community snapshot, 2026-09-28. Reasons for use are not evidence that it works.

Questions people ask

Does it treat cancer?

Antitumor findings in laboratory models do not establish a cancer treatment for people. 1

Is there a proven safe dose?

The kidney report cannot define one. 2

Are all powders equivalent?

Measured oxalate concentrations differed between commercial powders in the report. 2

Sources

  1. Chaga Mushroom Memorial Sloan Kettering Cancer Center