たんぱく・蛋白tanpaku[1]atamadaka (head-high)

1. nounprotein
   以前いぜん尿にょうにタンパクが出でました。↗

   Albumin was found in my urine before.
2. nounegg white; albumen; albumin

• Synonymタンパク質たんぱくしつNeutralThe standard, neutral word for protein as a nutrient, common in both everyday speech and writing; 「蛋白」 is its shortened form and can also mean egg white.
• SynonymプロテインCasualColloquial loanword that usually means protein powder or supplements for fitness; 「蛋白」 refers to the nutrient itself or to egg white.

For protein as a nutrient, use 「タンパク質」, the everyday default in speech and writing. 「蛋白」 works as a short form or for egg white. Choose 「プロテイン」 when talking about fitness protein powder or supplements.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 卵たまごの白身しろみ。
2. 蛋白質たんぱくしつ。