There are 4 solutions. The longest is TEMPEH with 6 letters, and the shortest is SOY with 3 letters.
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Yes, "VEGAN'S PROTEIN SOURCE" is currently trending (last update: 04 Dec 2025). Many solvers seem to find this clue challenging! Other clues with traffic peaks today are: Informal get-together, ANDROGYNOUS, nascent, Craft knife brand and ANNOYING KID.
Solutions are between 3 and 6 letters long.