Ingredient

Reishi Mycelium

Source
Not animal-derived
Allergen
No
Role in food
Manufacturers add reishi mycelium powder to foods for its earthy, slightly bitter flavor and …

What is Reishi Mycelium?

Reishi mycelium is the root-like structure of the reishi mushroom (Ganoderma lucidum). It is cultivated on grains, such as brown rice or oats, and then dried and powdered. The mycelium is often used as a source of beneficial compounds found in the reishi mushroom.

Is Reishi Mycelium vegan?

Reishi Mycelium is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Reishi Mycelium gluten-free?

It is typically grown on grains like rice or oats, which may contain gluten if not certified gluten-free.

Is Reishi Mycelium a major allergen?

Reishi mycelium is not a major allergen.

What is Reishi Mycelium used for?

Manufacturers add reishi mycelium powder to foods for its earthy, slightly bitter flavor and perceived health benefits.

Is Reishi Mycelium safe?

Reishi mycelium is generally recognized as safe (GRAS) by the FDA for use in food.

Why it's used

Manufacturers add reishi mycelium powder to foods for its earthy, slightly bitter flavor and perceived health benefits. It is commonly found in chocolate products, energy bars, and teas. It can also be incorporated into supplements.

Health notes

Reishi mycelium is generally recognized as safe (GRAS) by the FDA for use in food. Some studies suggest it may have immune-modulating and anti-inflammatory effects, but more research is needed. JECFA has evaluated reishi mushroom extracts, but no specific evaluation for reishi mycelium in food is widely cited. Evidence regarding its health effects is still developing.

Allergen info

Reishi mycelium is not a major allergen. It is typically grown on grains like rice or oats, which may contain gluten if not certified gluten-free. Consumers with celiac disease or gluten sensitivity should check product labels for allergen statements.

Foods that contain Reishi Mycelium

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Last updated: October 5, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.