Beta-Glucans: The Number That Matters
Beta-glucans are the well-studied polysaccharides at the heart of a quality mushroom supplement. This guide from Solverra Holistics explains what they are, why a stated beta-glucan percentage beats a vague “polysaccharide” figure, and how to use the number to compare products. Solverra mushroom products are lab-tested with a Certificate of Analysis available.
The compound
What are beta-glucans?
Beta-glucans are naturally occurring polysaccharides, a type of complex sugar, found in the cell walls of mushrooms. They are the most researched group of compounds in functional mushrooms and the ones most quality-minded buyers look for. Because they are water-soluble, they are drawn out during the hot-water stage of extraction.
When people talk about a mushroom supplement being “strong” or “potent,” they are usually talking, whether they know it or not, about its beta-glucan content. That makes the stated beta-glucan figure the single most useful number on a mushroom label.
The trap
Beta-glucans vs total polysaccharides
Here is the catch. Some labels report “polysaccharides” rather than “beta-glucans,” and the two are not the same. A total-polysaccharide figure can be inflated by starch (alpha-glucans) from the grain that mycelium was grown on. Starch is not what you are paying for. A high polysaccharide number can therefore hide a low beta-glucan content and a lot of grain filler.
| Label says | What it measures | Trustworthy? |
|---|---|---|
| Beta-glucans, stated % | The researched mushroom compound | Yes, especially with a COA |
| Polysaccharides, stated % | May include starch from grain | Weak, can hide filler |
| No number at all | Unknown | Treat with caution |
Using the number
How to compare products with beta-glucans
To compare two mushroom products fairly, look for a specific beta-glucan percentage on each and confirm it against a third-party Certificate of Analysis. A product that reports fruiting-body sourcing, a clear beta-glucan figure, and dual extraction where appropriate is giving you the information you need. One that hides behind a vague polysaccharide claim is not.
See how extraction affects what ends up in the bottle in dual extraction explained, and put it all together in the functional mushroom guide.
FAQ
Beta-glucan questions, answered
What are beta-glucans in mushroom supplements?
Beta-glucans are the water-soluble polysaccharides in mushroom cell walls and the most researched compounds in functional mushrooms. A stated beta-glucan percentage is the most useful number on a mushroom label.
Why is a beta-glucan number better than a polysaccharide number?
A total polysaccharide figure can include starch from the grain that mycelium was grown on, which inflates the number without adding value. A specific beta-glucan percentage measures the compound you actually want.
How do I verify the beta-glucan content?
Check the product’s third-party Certificate of Analysis, which should confirm the stated beta-glucan figure for the batch. Every Solverra mushroom product has a COA available.
Read the label like a pro