From Nuisance to Nutrition: Why the World’s Most Efficient Protein Still Gets Called a Weed Duckweed is the fastest-growing flowering plant on Earth , doubling its mass every 16 to 48 hours. On a dry-matter basis, it can contain up to 45% protein—meaning one acre of duckweed produces 5 to 10 times more protein than an acre of soybeans . While it has been used as a staple "water vegetable" in Southeast Asia for centuries, Western "water management" companies treat it as a pest to be poisoned with expensive chemicals. The Fastest Growing Food on Earth: Why is the World’s Most Efficient Protein Labeled a Weed? Duckweed (often marketed as water lentils or water meal, including species in the Lemnoideae/Wolffia groups) earns the “weed” label largely because of how it behaves in unmanaged water: it reproduces extremely fast, can blanket ponds and canals, clog intakes, interfere with boating, and contribute to low-oxygen conditions when dense mats die off—so in lake a...
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