King Oyster (Pleurotus Eryngii) Dehydrated Single Ounce

$14.99

At Mighty Mycelium & Supply, we offer Pleurotus Eryngii (also known as King Oyster) mushrooms in a variety of forms: fresh, dried fruiting bodies, resin extract, or even custom-grown fruiting blocks for home cultivation. Known for their dense, meaty texture and rich umami flavor, these mushrooms are a favorite for both chefs and home cooks.

Our dried fruiting bodies can be easily rehydrated and used in your favorite recipes—bringing convenience without compromising on quality.

We cultivate all of our mushrooms on pesticide-free sorghum grain, specially sourced from out of state to ensure superior cleanliness and nutrient density. Unlike many growers who opt for cheaper inputs, we never cut corners. Our hardwood-based substrate is enriched with a proprietary blend of supplements to encourage robust, vigorous growth, resulting in a product that’s truly premium from spore to harvest.

King oyster mushrooms (Pleurotus eryngii) are not only delicious and versatile in cooking but also packed with nutrients and bioactive compounds that offer several health benefits. Here’s a breakdown of the main benefits:

1. Rich in Nutrients

  • Low in calories, fat-free, and cholesterol-free

  • Good source of:

    • Protein (for a mushroom)

    • Dietary fiber

    • B vitamins (B2, B3, B5, B6, folate)

    • Minerals like potassium, phosphorus, and iron

2. Supports Heart Health

  • Beta-glucans and other polysaccharides may help:

    • Lower bad cholesterol (LDL)

    • Improve blood lipid profiles

  • Potassium helps regulate blood pressure

3. Immune System Support

  • Contains ergothioneine and selenium, antioxidants that protect immune cells from oxidative stress

  • Polysaccharides (like β-glucans) stimulate immune cell activity

4. Antioxidant Properties

  • Rich in phenolic compounds and ergothioneine, which help reduce oxidative damage in the body

  • May help reduce inflammation and slow cellular aging

5. Anti-Cancer Potential

  • Lab studies have shown that extracts from king oyster mushrooms can inhibit growth of certain cancer cells (e.g., colon, breast)

  • Likely due to antioxidant and immune-modulating effects, but more human research is needed

6. Gut Health

  • High fiber content aids digestion and feeds beneficial gut bacteria, promoting a healthier microbiome

7. Blood Sugar Control

  • Some studies suggest king oyster mushrooms may help regulate blood glucose levels, possibly by slowing carbohydrate absorption and improving insulin sensitivity

8. Antibacterial and Antiviral Properties

  • Contains compounds like pleuromutilin that exhibit antimicrobial activity

9. Weight Management

  • Low in calories and high in fiber, helping you feel full longer

  • Great as a meat substitute in plant-based diets due to its meaty texture


At Mighty Mycelium & Supply, we offer Pleurotus Eryngii (also known as King Oyster) mushrooms in a variety of forms: fresh, dried fruiting bodies, resin extract, or even custom-grown fruiting blocks for home cultivation. Known for their dense, meaty texture and rich umami flavor, these mushrooms are a favorite for both chefs and home cooks.

Our dried fruiting bodies can be easily rehydrated and used in your favorite recipes—bringing convenience without compromising on quality.

We cultivate all of our mushrooms on pesticide-free sorghum grain, specially sourced from out of state to ensure superior cleanliness and nutrient density. Unlike many growers who opt for cheaper inputs, we never cut corners. Our hardwood-based substrate is enriched with a proprietary blend of supplements to encourage robust, vigorous growth, resulting in a product that’s truly premium from spore to harvest.

King oyster mushrooms (Pleurotus eryngii) are not only delicious and versatile in cooking but also packed with nutrients and bioactive compounds that offer several health benefits. Here’s a breakdown of the main benefits:

1. Rich in Nutrients

  • Low in calories, fat-free, and cholesterol-free

  • Good source of:

    • Protein (for a mushroom)

    • Dietary fiber

    • B vitamins (B2, B3, B5, B6, folate)

    • Minerals like potassium, phosphorus, and iron

2. Supports Heart Health

  • Beta-glucans and other polysaccharides may help:

    • Lower bad cholesterol (LDL)

    • Improve blood lipid profiles

  • Potassium helps regulate blood pressure

3. Immune System Support

  • Contains ergothioneine and selenium, antioxidants that protect immune cells from oxidative stress

  • Polysaccharides (like β-glucans) stimulate immune cell activity

4. Antioxidant Properties

  • Rich in phenolic compounds and ergothioneine, which help reduce oxidative damage in the body

  • May help reduce inflammation and slow cellular aging

5. Anti-Cancer Potential

  • Lab studies have shown that extracts from king oyster mushrooms can inhibit growth of certain cancer cells (e.g., colon, breast)

  • Likely due to antioxidant and immune-modulating effects, but more human research is needed

6. Gut Health

  • High fiber content aids digestion and feeds beneficial gut bacteria, promoting a healthier microbiome

7. Blood Sugar Control

  • Some studies suggest king oyster mushrooms may help regulate blood glucose levels, possibly by slowing carbohydrate absorption and improving insulin sensitivity

8. Antibacterial and Antiviral Properties

  • Contains compounds like pleuromutilin that exhibit antimicrobial activity

9. Weight Management

  • Low in calories and high in fiber, helping you feel full longer

  • Great as a meat substitute in plant-based diets due to its meaty texture