Maitake Mushroom: Benefits & How to Use

Maitake (Grifola frondosa), known as “hen of the woods,” is an edible mushroom traditionally used in Japan and China for immune support and metabolic balance. Modern research has focused on its beta-glucans — especially a fraction called “D-Fraction” — and on its effects on blood sugar and hormones. Much of that evidence is still from animal and early human studies, so maitake is best seen as a well-rounded, food-grade mushroom for everyday balance.

What is maitake?

Maitake grows in big, overlapping clusters at the base of hardwood trees — usually oak — that look a little like the ruffled feathers of a sitting hen, which is where “hen of the woods” comes from. In Japanese its name means “dancing mushroom,” reportedly because foragers would dance with joy on finding one (they were once worth their weight in silver).

Unlike reishi or chaga, maitake is genuinely delicious — a prized culinary mushroom with a rich, savoury flavour. It’s also been used medicinally in East Asia for centuries, traditionally for immune strength and to help manage blood sugar. In our range, maitake is one of the five mushrooms in our 5-Mushroom Blend, where it contributes the metabolic and hormonal-balance angle.

What does the research say about maitake’s benefits?

Maitake’s research is a mix of encouraging animal studies and a handful of small human trials. Here’s what it actually shows.

1. Blood sugar and metabolic balance

This is maitake’s most-studied area. It contains a beta-glucan-and-protein complex called the SX-Fraction. In diabetic rats, maitake’s SX-Fraction lowered circulating glucose and blood pressure and improved insulin sensitivity (Preuss et al., 2012). Maitake also contains compounds that slow the digestion of carbohydrates, which may help smooth out blood-sugar spikes. The strongest evidence here is from animals, so think of maitake as traditionally used to support healthy metabolism — not as a treatment for diabetes.

2. Supporting the immune system

Maitake’s D-Fraction is one of the most researched mushroom beta-glucans. In animal studies it activated natural killer cells and other immune cells and raised immune signalling molecules (Kodama et al., 2002). In a small Phase I/II study, post-treatment breast cancer patients who took an oral maitake extract showed measurable changes in their immune markers (Deng et al., 2009). It’s important to be precise about that study: it measured immune markers only. It was not a test of cancer treatment, and maitake should never be presented as one.

3. Hormonal balance

Maitake has drawn research interest for hormonal health. In a small Japanese clinical study of women with polycystic ovary syndrome (PCOS), a maitake extract was associated with ovulation in about 77% of participants (Chen et al., 2010). This is a single small study, and it’s a research finding about a specific group — not a fertility promise or a treatment claim. We mention it because it’s a genuine, published result that explains why maitake is associated with hormonal balance.

4. Cholesterol and weight

In animal studies, maitake reduced total cholesterol, triglycerides, and LDL (“bad”) cholesterol by influencing how the liver handles fats (Ding et al., 2016), and improved glucose tolerance in obese mice by acting on a metabolic switch called PPARδ (Aoki et al., 2018). These are animal findings — promising context for maitake’s metabolic reputation, but not proof of an effect in people.

The compounds behind maitake

Maitake’s activity comes mainly from its beta-glucans — complex sugars, including the D-Fraction and SX-Fraction, that interact with the immune and metabolic systems (Wu et al., 2021). A quality maitake product is one where these beta-glucans are actually present and measurable, rather than diluted by grain filler — which is exactly what extraction and testing are for.

How to take maitake: dosage and forms

Maitake is unusually flexible because it’s both a food and a supplement.

Form	Typical daily amount	Notes
Fresh, cooked	100–200 g	A genuine culinary mushroom — delicious roasted or sautéed
Dried	5–10 g	Traditional form
Standardised D-Fraction extract	35–70 mg	The concentrated form used in clinical studies
In a multi-mushroom tincture	Within a 1–2 ml daily serving	Maitake works alongside the other mushrooms in the blend

In our 5-Mushroom Blend, maitake is dual-extracted along with the other four mushrooms — in hot water for the beta-glucans and in alcohol for the alcohol-soluble compounds — at a 1:8 ratio. A 1–2 ml daily serving delivers maitake in synergy with Lion’s Mane, reishi, chaga, and shiitake. As always, benefits build with consistent use over four to twelve weeks.

Is maitake safe? Side effects to know

Maitake has an excellent safety record — people have eaten it for centuries. At culinary and normal supplement doses it’s very well tolerated, with only occasional mild digestive upset or, rarely, an allergic reaction.

The main thing to know:

• Diabetes medication. Because maitake may lower blood sugar, it could add to the effect of diabetes medication. If you take any, monitor your levels and talk to your doctor.
• Immune-suppressing drugs. As maitake can influence immune activity, check with your doctor if you take immunosuppressants.
• Pregnancy and breastfeeding. There isn’t enough data on concentrated supplement doses, so it’s best to stick to culinary amounts or avoid.

How we make our maitake

For maitake, carefully cultivated quality is every bit as good as wild — so we focus on growing it well and extracting it properly. Like everything we make, our maitake uses 100% fruiting bodies (never mycelium grown on grain, which can leave a product that’s mostly starch), is dual-extracted in hot water and Bagaço (a traditional Portuguese pomace alcohol), and is independently lab-tested for its active compounds.

That rigour is the whole point of Mushroom Compadres. When researchers tested 19 functional mushroom supplements sold in Europe, only 5 actually contained the mushroom on the label. We grow, extract, and test our own mushrooms in Portugal so you know what’s in the bottle. Read more about how we make our tinctures →

Maitake FAQ

What is maitake good for?

Maitake is traditionally used to support the immune system and metabolic balance, including healthy blood sugar and hormonal balance. Modern research — much of it in animals, with some small human studies — has investigated these areas. It’s a well-rounded, food-grade mushroom rather than a remedy for any specific condition.

Can you eat maitake mushroom?

Absolutely — maitake is a prized culinary mushroom with a rich, savoury flavour, excellent roasted or sautéed. Its medicinal use and its place on the plate go hand in hand, which is part of what makes it so approachable.

Does maitake help with blood sugar?

Maitake has been studied for blood-sugar support, mostly in animal research, where its SX-Fraction lowered glucose and improved insulin sensitivity. It’s traditionally used for metabolic balance, but it isn’t a treatment for diabetes. If you take diabetes medication, talk to your doctor before adding it.

Is maitake safe to take with diabetes medication?

Because maitake may lower blood sugar, it could amplify the effect of diabetes medication. That’s not a reason to avoid it outright, but you should monitor your blood sugar and check with your doctor first.

How is maitake different from other functional mushrooms?

Each mushroom has its specialty. Lion’s Mane is the focus mushroom, reishi is for calm, chaga is the antioxidant, and maitake brings the metabolic and hormonal-balance angle. That’s why it’s part of a blend — the mushrooms cover different bases together.

Get maitake in your daily blend

Maitake brings metabolic and hormonal balance to our 5-Mushroom Blend — five of earth’s most useful mushrooms in one daily tincture. You can also explore our Gut Health collection.

New to functional mushrooms? Start with Functional Mushrooms: The Complete Guide, or read about its blend-mates Lion’s Mane, Reishi, and Shiitake.

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This article is for educational purposes and is not medical advice. Mushroom Compadres products are food supplements, not medicines, and are not intended to diagnose, treat, cure or prevent any disease. If you are pregnant, breastfeeding, or taking medication, speak to a healthcare professional before use.

References

1. Preuss HG, Echard B, Fu J, et al. (2012). Fraction SX of maitake mushroom favorably influences blood glucose levels and blood pressure in streptozotocin-induced diabetic rats. Journal of Medicinal Food, 15(10), 901–908. https://pubmed.ncbi.nlm.nih.gov/22873755/
2. Kodama N, Komuta K, Nanba H. (2002). Effect of D-Fraction, a polysaccharide from Grifola frondosa, on tumor growth involve activation of NK cells. Biological & Pharmaceutical Bulletin, 25(12), 1647–1650. https://pubmed.ncbi.nlm.nih.gov/12499658/
3. Deng G, Lin H, Seidman A, et al. (2009). A phase I/II trial of a polysaccharide extract from Grifola frondosa (maitake mushroom) in breast cancer patients: immunological effects. Journal of Cancer Research and Clinical Oncology, 135(9), 1215–1221. https://pubmed.ncbi.nlm.nih.gov/19253021/
4. Chen JT, Tominaga K, Sato Y, Anzai H, Matsuoka R. (2010). Maitake mushroom (Grifola frondosa) extract induces ovulation in patients with polycystic ovary syndrome. Journal of Alternative and Complementary Medicine, 16(12), 1295–1299. https://pubmed.ncbi.nlm.nih.gov/21034160/
5. Ding Y, Xiao C, Wu Q, et al. (2016). The mechanisms underlying the hypolipidaemic effects of Grifola frondosa in the liver of rats. Frontiers in Microbiology, 7, 1186. https://pubmed.ncbi.nlm.nih.gov/27536279/
6. Aoki H, Hanayama M, Mori K, Sato R. (2018). Grifola frondosa (maitake) extract activates PPARδ and improves glucose intolerance in high-fat diet-induced obese mice. Bioscience, Biotechnology, and Biochemistry, 82(9), 1550–1559. https://pubmed.ncbi.nlm.nih.gov/29873587/
7. Wu JY, Siu KC, Geng P. (2021). Bioactive ingredients and medicinal values of Grifola frondosa (maitake). Foods, 10(1), 95. https://pubmed.ncbi.nlm.nih.gov/33466429/