King Trumpet
The Nutritional Giant & Ergothioneine Champion
King Trumpet (Pleurotus eryngii), also known as King Oyster or Eringi, is the largest species in the oyster mushroom family and one of the most nutritionally dense edible fungi in the world. Native to the Mediterranean region, the Middle East, and parts of Asia, it is now one of the most widely cultivated mushrooms globally due to its exceptional culinary versatility, long shelf life, and impressive nutritional and medicinal profile. King Trumpet is especially notable for its extraordinarily high ergothioneine content — a rare antioxidant amino acid that humans cannot synthesize and must obtain from diet, with mushrooms being the richest known dietary source.
📋Quick Facts
King Oyster, Eringi (Japanese), Cardoncello (Italian), Trumpet Royale
Also Known As
Pleurotus eryngii
Primary Species
Mediterranean, Middle East, Central Asia; globally cultivated
Origin
Culinary traditions in Europe and Asia; modern medicinal research
Historical Use
500–2,000 mg/day extract; or 85–170g fresh (culinary)
Typical Dose
Fresh (widely available in grocery stores), dried, powder, capsules
Forms Available
⭐Key Benefits
King Trumpet has the highest ergothioneine content of any food. Ergothioneine is a unique antioxidant that accumulates in mitochondria and cell nuclei, protecting DNA from oxidative damage and is associated with longevity.
🧬Ergothioneine — Longevity Antioxidant
Contains lovastatin (a natural statin compound), ergosterol, and beta-glucans that work synergistically to reduce LDL cholesterol, lower blood pressure, and improve vascular health
❤️Cardiovascular Health
Beta-glucans from King Trumpet activate macrophages and natural killer cells, providing broad immune support comparable to other medicinal mushrooms.
🛡️Immune Modulation
High in Vitamin D2 (especially when sun-dried), potassium, and other minerals essential for bone density and muscle function — relevant for aging populations and athletes.
🦴Bone & Muscle Health
Shown to reduce fat accumulation, improve cholesterol profiles, and support healthy blood sugar regulation, making it relevant for metabolic syndrome management.
⚖️Metabolic Support
Excellent source of protein (particularly high for a mushroom), B vitamins, potassium, iron, selenium, and zinc — providing genuine nutritional value beyond bioactive compounds.
🍽️Superior Nutritional Value
🧪Active Compounds
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L-Ergothioneine — rare protective antioxidant; highest content of any known food
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Lovastatin — natural cholesterol-lowering statin compound
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Beta-1,3/1,6-glucans — immune-modulating polysaccharides
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Ergosterol — Vitamin D2 precursor (especially potent when sun-exposed)
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Pleuran — specific beta-glucan with immune-activating properties
⚠️Safety & Cautions
Extremely safe with no significant adverse effects reported. Suitable for all populations including children and elderly. Those with mushroom allergies should introduce gradually. One of the safest functional mushrooms available.