あさ 朝たん LinksSentence search for 朝たんSentence search for あさたんKanji details for 朝Edit in JMdict Noun1. protein consumed at breakfast; morning proteinSlang, abbr. of 朝ご飯たんぱく質; from campaign encouraging people to consume 20 grams of protein at breakfast Discussions Log in to talk about this word.