Halaal is an Arabic word meaning lawful or permitted. In the Quraan-e-Kareem, Allah Ta’ala commands Muslims and all of mankind to eat of the Halaal things. Among the many verses of the Quraan that convey this message, here are a couple:
O Mankind! Eat of that which is lawful and wholesome in the earth, and follow not the footsteps of the devil.
Lo! he is an open enemy for you.(2:168) O ye who believe! Eat of the good things wherewith We have provided you, and render thanks to Allah if it is (indeed) He Whom ye worship.(2:172)