Translation guide
Casein is a protein found in milk. In Japanese, it is usually referred to by the loanword カゼイン (kazein).
Referring to the protein casein, especially in food, nutrition, or science contexts.
The standard Japanese term for casein, used in both everyday and technical contexts.
牛乳にはカゼインが含まれています。
Milk contains casein.
カゼインはチーズの主成分です。
Casein is the main component of cheese.
Literally 'casein protein', used when emphasizing the protein aspect, common in nutritional supplements.
カゼインタンパク質はゆっくり消化されます。
Casein protein is digested slowly.