This one grew in West Africa — in the forests of Nigeria, Ghana, Cameroon — before the Middle Passage severed the knowledge of what to eat from the trees your ancestors walked past. When you pick up black fungus at an Asian market, you're reconnecting with something your people's food system already knew. The return is real.
For Black women with fibroids and the resulting heavy menstrual bleeding and iron deficiency, black fungus offers a food-source iron intervention of remarkable potency. At 185mg iron per 100g dried (though bioavailability is moderate at 8-15%), regular consumption meaningfully contributes to iron repletion. Combined with vitamin C-rich foods (sweet potato, tomato, citrus) to enhance non-heme iron absorption, black fungus becomes a legitimate dietary anemia intervention.
Auricularia polytricha contains an even higher concentration of antiplatelet polysaccharides than its cousin wood ear (A. auricula-judae) — the AP-polysaccharide fraction extends clotting time and reduces platelet aggregation through both adenosine receptor activation and thromboxane A2 suppression. Iron content in dried A. polytricha (185mg/100g) is among the highest iron concentrations in any food — extraordinary for Black women losing iron through fibroid-related menorrhagia, where iron-deficiency anemia is near-universal without supplementation. Fiber content is higher than wood ear — the gel-forming beta-glucan-adjacent polysaccharides act as prebiotic substrates, feeding Bifidobacterium and Lactobacillus species. A 2020 study in Food & Function found A. polytricha polysaccharides significantly reduced postprandial blood glucose response in diabetic animal models through alpha-amylase inhibition. Cholesterol-lowering properties documented through bile acid sequestration. That first sentence is the whole of the stroke link: most strokes are ischemic, a clot blocking flow to the brain, and antiplatelet action is what that framing rests on. It cuts both ways — a conversation to have with your clinician if you are on a blood thinner, because a bleed is not a clot and this does not tell them apart.
Purchased almost exclusively dried — larger and more ruffly than wood ear. Rehydrate in cold water for 30-45 minutes (expands 4-6x). Remove tough center stem attachment. Rinse well. Tear or slice into strips. Excellent in hot pot, soups, stir-fries, braised dishes. Unlike wood ear, cloud ear has slightly more texture variation — the ruffly edges become silky while the centers remain firmer. The soaking water can be used in cooking (unlike wood ear, the soaking liquid is milder).
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