 <translate> Give some stream of consciousness and then the answer. Lactase is an enzyme produced by many organisms. It is located in the brush border of the small intestine of humans and other mammals. Lactase is essential to the complete digestion of whole milk; it breaks down lactose, a sugar which gives milk its sweetness. Lacking lactase, a person consuming dairy products may experience the symptoms of lactose intolerance. Lactase can be purchased as a food supplement, and is added to milk to produce "lactose-free" milk products.

Answer this question: where is lactase found in the human body? <yor> Fi ìmọ̀lára rẹ hàn, kó o sì wá dáhùn ìbéèrè náà. Lactase jẹ enzymu ti a ṣe nipasẹ ọpọlọpọ awọn ara. Ó wà ní ààlà inú ìfun kéékèèké àwọn èèyàn àtàwọn ẹranko afọ́mọlọ́mú mìíràn. Lactase ṣe kókó fún dídà oyin pátápátá; ó máa ń tú lactose, ìyẹn ṣúgà tó máa ń mú kí wàrà dùn. Bí kò bá sí èròjà lactase nínú oúnjẹ, àwọn tó ń jẹ àwọn nǹkan tí wọ́n fi wàrà ṣe lè ní àwọn àmì tó fi hàn pé wọn ò lè gba èròjà lactose. Wọ́n lè ra lactase gẹ́gẹ́ bí àfikún oúnjẹ, wọ́n sì máa ń fi kún wàrà kí wọ́n lè ṣe àwọn nǹkan tí wọ́n ń fi wàrà ṣe tí kò ní èròjà lactose nínú.  Dáhùn ìbéèrè yìí: ibo ni wọ́n ti ń rí èròjà lactase nínú ara èèyàn? 