Choosing the best mushroom supplement: 7 criteria (2026)

Short answer: Seven criteria determine whether a mushroom supplement is good: the scientific name on the label, the fruiting body as the part used, a measured beta-glucan content, a stated extraction method, a CoA for each batch, a species and part permitted in the EU, and a clear price per day. The "best" product meets these criteria in a form that fits your routine.

Last updated: October 30, 2026 · Written by Florian Fermin

On the shelf, every mushroom supplement looks alike. You only see the differences when you read the label, and you need to know what to look for.

Below are the seven things I look for, with a link for each to the article where we explore it further. At the end, we compare our own products, including where they fall short.

What makes a good mushroom supplement?

A good mushroom supplement states which species and part of the mushroom it contains, substantiates the content with a lab test, and complies with EU regulations. Seven set criteria let you compare every brand in the same way, regardless of packaging or marketing. For each criterion below, you'll find a good sign and a red flag.

Why must the mushroom's scientific name appear on the label?

The scientific name identifies exactly which species it contains. Trade names such as "cordyceps" or "reishi" can refer to several species, and with cordyceps, the species even determines whether a supplement is permitted in the EU. So you can't properly compare products without the Latin name.

Examples include lion's mane (bearded tooth fungus, Hericium erinaceus), reishi (varnished conk, Ganoderma lucidum) and chaga (Inonotus obliquus).

For cordyceps (caterpillar fungus), Cordyceps militaris is not permitted in supplements in the EU, but Ophiocordyceps sinensis and Samsoniella hepiali are. Read more in our article about cordyceps and EU regulations.

How do I know whether my lion's mane or reishi supplement is made from the fruiting body or from mycelium?

Check the ingredients list: “fruiting body” is the mushroom itself, while “mycelium” or “myceliated grain” refers to fungal threads grown on grain. If it’s not listed, simply ask. For lion's mane and reishi, dried mycelium is an unauthorised novel food in the EU.

Mycelium grown on grain is ground together with the grain and therefore often contains starch. Its composition also differs (Friedman, 2015). Read the full story in fruiting body vs. mycelium.

Why does a measured beta-glucan content tell you more than “polysaccharides”?

Beta-glucans are polysaccharides from the cell walls of mushrooms, while the broader “polysaccharides” measurement may also count starch. So a product with mycelium grown on grain can show a high polysaccharide content without that content coming from the mushroom. A measured beta-glucan content, with the method stated, is therefore a better basis for comparison.

How to read this on a label and how much products differ is explained in beta-glucans in mushrooms.

What does an extraction ratio such as 10:1 or 20:1 mean, and is higher always better?

An extraction ratio indicates how much dried mushroom was used to make one part extract: at 20:1, 20 kilos of mushroom have been reduced to 1 kilo of extract. Higher isn’t automatically better, because the ratio says nothing about which compounds have been retained. So also check the method and a measured content.

An extract is made with water, alcohol or both. Hot water mainly extracts polysaccharides such as beta-glucans, while alcohol mainly extracts compounds such as triterpenes (Wachtel-Galor et al., 2011). A dual extraction uses both.

Why is a CoA for each batch important when choosing a supplement?

A CoA (Certificate of Analysis) is a lab report for one batch, showing the requirement, measured value and method for each test. It tells you whether the content, heavy metals and microbiology are within specifications. Without a CoA, you have to take a supplier at their word, and with only “compliant” and no figures, you basically do too.

Read how to read a CoA for details on its components, EU limits for heavy metals, and red flags. An organic certification says something about how it's grown, but doesn't replace a lab test.

How can you tell if a mushroom supplement is allowed in the EU?

A supplement is allowed in the EU if its species and the part used are not unauthorized novel foods. A novel food is a food that was not consumed to a significant degree in the EU before May 15, 1997, and therefore requires prior authorization. Products sold outside the EU don't always comply with this.

Pay particular attention to Cordyceps militaris, which the NVWA (2025) does not allow in supplements, and to dried mycelium from lion's mane and reishi. Chaga is a special case: it's allowed in supplements, but as an ordinary food (for example, loose tea), it's considered a novel food in the EU.

Is an expensive mushroom supplement always better than a cheap one?

No, a higher price doesn't say anything about quality on its own. Calculate the price per daily serving and compare it with the composition: species, part used, extraction ratio, and measured beta-glucans. A cheap bottle containing mycelium grown on grain isn't necessarily cheaper per day than a more expensive extract.

Example: A bottle of 60 capsules lasts 30 days at 2 capsules a day, or 20 days at 3 capsules a day. So always check the recommended use on the packaging before comparing prices.

How do GOYU's mushroom supplements score on these 7 criteria?

Our lion's mane products score well on species, part used, batch-specific CoAs, and EU regulations. We're weaker on measured content: only the extract capsules list a content level, and we haven't had the species determined with a DNA test. Below, see what we're doing well and where we're falling short for each criterion.

The lion's mane capsules contain ground organic powder and no extract. This is also mentioned as a criticism in reviews (Judge.me, October 2026). If you're looking for an extract, choose the extract capsules: 20:1, fruiting body, water and ethanol, 400 mg per capsule, of which 20% are beta-glucans and 30% polysaccharides.

How much does lion's mane from GOYU cost per day?

Our lion's mane costs about €0.20 to €1.33 per day, depending on the form and dosage (prices on October 22, 2026). The difference is mainly in the dosage: according to the package, you take 1 to 5 scoops of the powder and 2 extract capsules per day. Always follow the directions on the package.

In addition to lion's mane, we also offer reishi, chaga, and cordyceps as powder, capsules, and extract, and shiitake as powder and capsules, in the mushroom collection. Unsure which species to choose? Read which mushroom is right for you.

Summary in 3 points

• Check the species, part used, and measured beta-glucan content. That tells you more than a brand name or a high extraction ratio.
• Ask for a batch-specific CoA with actual test results, and check whether the species and part are permitted in the EU.
• Compare the price per daily dose, not per package.

Frequently asked questions

What is the best mushroom supplement?

The product that combines the right species, the fruiting body, a measured content, and a CoA, in a form that suits your routine.

Is organic important?

An organic certification says something about the cultivation method. Lab tests for heavy metals are still necessary as well.

Are more expensive products better?

Not necessarily. Compare the ingredients and the price per day.

Are lion's mane capsules always an extract?

No. Some capsules on the market contain ground powder. It is an extract only if an extraction ratio or extraction method is stated.

Why is there a Latin name on a good label?

Because trade names can cover multiple species. Only the scientific name specifies which species it contains.

Sources

1. Wachtel-Galor S, Yuen J, Buswell JA, Benzie IFF. Ganoderma lucidum (Lingzhi or Reishi). In: Benzie IFF, Wachtel-Galor S, editors. 2nd ed. Boca Raton (FL): CRC Press/Taylor & Francis; 2011. Chapter 9. https://www.ncbi.nlm.nih.gov/books/NBK92757/
2. Friedman M. Review article on the chemistry and nutritional value of Hericium erinaceus (fruiting body and mycelium). J Agric Food Chem. 2015;63(32):7108-7123. https://europepmc.org/article/MED/26244378
3. NVWA. Inspection results for Cordyceps militaris 2025. nvwa.nl
4. Judge.me. Customer reviews on getgoyu.com, October 2026.
5. GOYU, packaging and prices for lion's mane products on getgoyu.com, accessed October 22, 2026.

This article is for informational purposes and is not medical advice. Dietary supplements are not a substitute for a varied and balanced diet and a healthy lifestyle. If in doubt, during pregnancy, or when taking medication, consult your doctor or pharmacist.