The Quran clearly states:
“He hath forbidden you only carrion, and blood, and swineflesh, and that which hath been immolated to (the name of) any other than Allah. But he who is driven by necessity, neither craving nor transgressing, it is no sin for him. Lo! Allah is Forgiving, Merciful.”(Surah Al-Baqarah 2:173)
“Forbidden unto you (for food) are carrion and blood and swineflesh, and that which hath been dedicated unto any other than Allah, and the strangled, and the dead through beating, and the dead through falling from a height, and that which hath been killed by (the goring of) horns, and the devoured of wild beasts, saving that which ye make lawful (by the death-stroke), and that which hath been immolated unto idols.”(Surah Al-Ma’idah 5:3)
The same verse later adds: “This day have I perfected your religion for you and completed My favour unto you, and have chosen for you as religion al-Islam.”
“Say: I find not in that which is revealed unto me aught prohibited to an eater that he eat thereof, except it be carrion, or blood poured forth, or swineflesh — for that verily is foul — or the abomination which was immolated to the name of other than Allah. But whoso is compelled (thereto), neither craving nor transgressing, (for him) lo! thy Lord is Forgiving, Merciful.”(Surah Al-An’am 6:145)“
“He hath forbidden for you only carrion and blood and swineflesh and that which hath been immolated in the name of any other than Allah; but he who is driven thereto, neither craving nor transgressing, lo! then Allah is Forgiving, Merciful.”(Surah An-Nahl 16:115)