Fruiting Body or Mycelium: Read the Label Before You Read Anything Else
One distinction decides most of what is in a mushroom supplement, and it is rarely printed in large type.
·4 min read
Walk down any supplement aisle and you'll find a shelf of mushroom capsules that all look, more or less, the same. Ask what's actually inside them and you'll get a far less uniform answer, because the functional mushroom category has a quiet habit of blurring one distinction that matters more than almost any other: whether the product is made from the mushroom itself, or from the mycelium it grew on.
The fruiting body is the part you'd recognise if you found it in a forest: the visible, harvestable mushroom. Mycelium is the root-like network beneath it, and in the supplement industry, "mycelium" very often means mycelium grown on a bed of rice, oats or rye, then dried and ground, husk and all. That distinction isn't cosmetic. A large share of the compounds that researchers actually study when they study functional mushrooms, beta-glucans among them, concentrate in the fruiting body. Grain-substrate mycelium products, by contrast, can be largely starch by weight, because the grain never fully separates from the fungal growth before it's milled into powder.
None of this is easy to see on a label. "Mushroom powder" can legally describe either thing, and a bag of mycelium-on-grain costs a fraction of what fruiting-body cultivation costs to produce, which is precisely why so much of the market is built on it. It isn't dishonest, exactly; it's just a shortcut, taken often enough that it's become the default rather than the exception.
We built our farm in Oswestry around refusing that shortcut. Every gram of Lion's Mane and Reishi that goes into a Shrooma tincture is grown as a fruiting body, on substrate we mix ourselves, in rooms where we control humidity, airflow and light because those are the variables that decide whether a mushroom tastes like itself and tests like itself. Chaga, which won't grow in cultivation at all, is hand-foraged from wild silver birch by a trusted partner in the Scottish Highlands. again, fruiting body only, this time a wild one.
The honest version of this story isn't glamorous. Growing fruiting bodies takes longer, costs more, and yields less per batch than growing mycelium on grain. There's no way to make that sound like a hack. It's simply the slower path, and we think it's the only one worth being on our label.
If you take one thing from this, let it be a habit rather than a claim: read past "mushroom powder" or "mushroom extract" on any product you're considering, and look for whether it says fruiting body or mycelium. It's a small phrase, and it tells you almost everything else you need to know.
Shrooma tinctures are food supplements and are not intended to diagnose, treat, cure or prevent any disease.