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Coprinus comatus

(O.F. Müll.) Pers.

Coprinus comatus
FamilyAgaricaceae
GenusCoprinus
ClassHypoglycemic / Metabolic
Cultivable✅ Yes — Medium (Difficult to commercialize fresh because the fruiting body self-liquefies 'deliquescence' into black ink within hours of harvest)
HabitatRich meadows, lawns, and road edges — Terrestrial / Saprobic (Nitrogen-rich soils)

Common Names

🇪🇸 SpanishBarbuda, Apagador, Seta de tinta
🇬🇧 EnglishShaggy Mane, Shaggy Ink Cap, Lawyer's Wig
🌍 LocalJītuǐgū (China)

Description

An unmistakable mushroom shaped like a scaly white cylinder that, astonishingly, self-digests and turns into black ink within hours after maturing. Beyond this rarity, it is one of the most formidable hypoglycemic (blood sugar-lowering) agents discovered by medical science.

Ecology

Saprobic and also nematophagous (carnivorous towards microscopic worms), it grows aggressively in heavily manured or nitrogen-rich soils, often appearing overnight.

lens_blur Cap (Pileus)

Size:3 - 15 cm tall, 2 - 5 cm wide.
Shape:Cylindrical to ovate when young, expanding into a bell shape.
Color:White, covered with shaggy brown or reddish scales.
Surface:Scaly (shaggy or bearded).
Margin:Turns black and liquefies with maturity.

view_list Hymenium

Type:Gills
Attachment:Free.
Color:White, then pink, and rapidly black and liquefied (deliquescent).
Spacing:Very crowded.

straighten Stipe (Stem)

Dimensions:5 - 20 cm tall, 1 - 2 cm thick.
Color:White.
Surface:Smooth, hollow, with a visible central cord.
Ring:A movable, fragile ring.

blur_circular Spores

Shape:Elliptical, with an apical germ pore.
Dimensions:10-14 x 6-8 µm
Print:Pure black.

colorize Flesh

Color:White.
Magulladuras:Does not bruise blue.
Odor:Mild.
Taste:Mild and excellent when young.

Phytochemical Profile

Vanadium

This mushroom bioaccumulates trace amounts of vanadium. Vanadium compounds have an 'insulin-mimetic' effect, meaning they mimic the action of insulin in the body.

Comatin

A unique compound that has demonstrated a potent blood sugar-lowering effect.

verified Clinical Evidence: Moderate/High (Robust studies in Type I and Type II diabetes models)

gpp_bad Warnings & Contraindications

  • Do not confuse with *Coprinopsis atramentaria* (Common Ink Cap), which causes coprine syndrome if consumed with alcohol. *Coprinus comatus* does NOT contain coprine and is safe with alcohol.
  • Must be consumed or processed strictly when the gills are still white, before deliquescence.

medical_services Clinical Benefits

  • Severe Diabetes Control (Hypoglycemic): Its compounds mimic insulin, allowing cells to absorb glucose from the blood even when the pancreas does not produce enough insulin (insulin-mimetic effect).
  • Weight Loss and Metabolism: Helps break insulin resistance in metabolic syndrome, facilitating cellular weight control.
  • Pancreatic Protection: Protects and partially regenerates the beta cells of the Islets of Langerhans in the pancreas.

history_edu Traditional Uses

  • Traditional Chinese Medicine: Used to improve digestion, treat hemorrhoids, calm nerves, and recently for 'sweet urine disease' (diabetes).

warning Interactions & Precautions

  • Insulin and Antidiabetic Drugs: CAUTION. Can cause hypoglycemia (dangerous blood sugar drop) if taken alongside injected insulin or drugs like metformin, as the effects are additive.

science Extraction Methods

  • Rapid Drying and Powder: Because it liquefies, it must be dehydrated immediately after harvest. The dried powder is used as a supplement.

scale Standard Dosage

Dried mushroom powder: 1 to 3 grams daily, monitoring blood glucose levels.

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