King Trumpet
Pleurotus eryngii
The steakhouse mushroom of the Mediterranean steppe, dried into every cup.
Where King Trumpet grows
Pleurotus eryngii is native to the grasslands and steppes of the Mediterranean, southern and central Europe, North Africa, and western and central Asia. Unlike its wood-loving oyster relatives, it grows in open soil near the roots of Eryngium plants such as sea holly, which gives the species its name. Cultivation began in East Asia, particularly Japan, China, and Korea, and the mushroom is now grown on every continent except Antarctica. For THREEE we use organic King Trumpet, sourced for the blend.
Quiet, dense, and unhurried, like the soil it came from.
What the research explores
Randomized controlled trial of a Pleurotus eryngii snack in metabolic disorders
In a three-month randomized controlled trial, 100 participants with metabolic disorders received nutritional counseling, and the intervention group additionally consumed a daily UV-B irradiated Pleurotus eryngii mushroom snack; the researchers observed changes in glucose, body weight, body fat, and inflammatory markers in the mushroom group relative to control.
Kleftaki S-A, Amerikanou C, Gioxari A, et al., Antioxidants (Basel), 2022. PMID 36358485.
Pleurotus eryngii beta-glucans and postprandial amino acids in obese adults
In a human study of obese adults with central obesity, meals containing Pleurotus eryngii beta-glucans were associated with a reduced postprandial rise in aromatic amino acids compared with control meals. This was a small human trial focused on protein digestion.
Dietary Pleurotus eryngii and lipid profile in hypercholesterolemic rats
In an animal study, rats fed a high-cholesterol diet with a 5% Pleurotus eryngii fruiting-body supplement showed changes in their atherogenic lipid profile and increased fecal lipid and cholesterol excretion. This finding comes from a rat model, not a human trial.
Alam N, et al., Saudi Journal of Biological Sciences, 2011. PMID 23961153.
These studies describe the mushroom in research settings, not THREEE or its outcomes. They are provided for transparency and education. They have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. Individual results vary.
What organic King Trumpet brings to the cup
Organic King Trumpet is among the densest, most substantial of the cultivated mushrooms, valued for its firm fruiting bodies and naturally occurring beta-glucans. In the THREEE blend it contributes its share of these mushroom-derived polysaccharides alongside the other nine fungi, part of the structure and character of each cup. We describe what it is and where it comes from, and leave the rest to the published research.
The THREEE truth
Organic King Trumpet is one of the ten organic mushrooms in the fully disclosed 520mg blend present in every cup of THREEE.
A short history
A closer look at one landmark study.
This three-month randomized controlled trial enrolled 100 participants with metabolic disorders, all of whom received conventional nutritional counseling; the intervention group additionally ate a daily snack made from UV-B irradiated Pleurotus eryngii mushrooms. The researchers reported reductions in glucose, body weight, BMI, and body fat in the mushroom group compared with control, along with changes in inflammatory markers such as IL-6 and oxidized LDL and improvements in vitamin D2 status. As a human randomized trial of King Trumpet itself, it is the strongest study in this set. The authors frame the results as observations about the mushroom snack within the trial, not as evidence about any commercial product.
One of ten. All in one cup.
King Trumpet has been eaten around the Mediterranean since antiquity and studied in modern labs more recently. It sits in the THREEE blend not as a headline but as one of ten organic mushrooms, fully disclosed at 520mg per serving. If that kind of plain accounting is what you are looking for in a cup of coffee, it is here when you want it.
Shop THREEEThese statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.