The word halal comes from Arabic and can be translated as "permitted or pure". Foodstuffs that comply with Islamic regulations are summarized under the term halal. On the other hand, foods that do not comply with Islamic regulations are summarized under the term haram. The food regulations are regulated in the Koran, the holy book of Islam, and in the Sunna, which contains the life, teachings and deeds of the Prophet Mohammed. In general, all foods are permitted except those that have been expressly or clearly forbidden.

The Koran clearly states which foods are forbidden for Muslims, i.e. Haram:

" Prohibited to you are dead animals, blood, the flesh of swine, and that which has been dedicated to other than Allāh, and [those animals] killed by strangling or by a violent blow or by a head-long fall or by the goring of horns, and those from which a wild animal has eaten, except what you [are able to] slaughter [before its death], and those which are sacrificed on stone altars, and [prohibited is] that you seek decision through divining arrows." (Sura 5, Verse 3)

It is widely known that the consumption of pork and alcohol is not permitted for Muslims. However, the Koran lists other foods that are not permitted.

These include:

• Carrion
• Sacrificial animals of foreign religions
• improperly killed animals
• animals killed by other animals.

Sura Al-Baqarah (The Cow), Verse: 168

يَـٰٓأَيُّهَا ٱلنَّاسُ كُلُواْ مِمَّا فِي ٱلۡأَرۡضِ حَلَٰلٗا طَيِّبٗا وَلَا تَتَّبِعُواْ خُطُوَٰتِ ٱلشَّيۡطَٰنِۚ إِنَّهُۥ لَكُمۡ عَدُوّٞ مُّبِينٌ 168

O mankind, eat from whatever is on earth (that is) lawful and tayyib (good, pure) and do not follow the footsteps of Satan. Indeed he is to you a clear enemy.

Sura Al-Baqarah (The Cow), Verse: 172,173

يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُواْ كُلُواْ مِن طَيِّبَٰتِ مَا رَزَقۡنَٰكُمۡ وَٱشۡكُرُواْ لِلَّهِ إِن كُنتُمۡ إِيَّاهُ تَعۡبُدُونَ 172 إِنَّمَا حَرَّمَ عَلَيۡكُمُ ٱلۡمَيۡتَةَ وَٱلدَّمَ وَلَحۡمَ ٱلۡخِنزِيرِ وَمَآ أُهِلَّ بِهِۦ لِغَيۡرِ ٱللَّهِۖ فَمَنِ ٱضۡطُرَّ غَيۡرَ بَاغٖ وَلَا عَادٖ فَلَآ إِثۡمَ عَلَيۡهِۚ إِنَّ ٱللَّهَ غَفُورٞ رَّحِيمٌ 173

O you who have believed, eat from the good things which We have provided for you and be grateful to Allah if it is [indeed] Him that you worship. He has only forbidden to you dead animals, blood, the flesh of swine, and that which has been dedicated to other than Allah. But whoever is forced [by necessity], neither desiring [it] nor transgressing [its limit], there is no sin upon him. Indeed, Allah is Forgiving and Merciful.

Sura Al-Mâ'ida (The Table), Verse: 4

يَسۡـَٔلُونَكَ مَاذَآ أُحِلَّ لَهُمۡۖ قُلۡ أُحِلَّ لَكُمُ ٱلطَّيِّبَٰتُ وَمَا عَلَّمۡتُم مِّنَ ٱلۡجَوَارِحِ مُكَلِّبِينَ تُعَلِّمُونَهُنَّ مِمَّا عَلَّمَكُمُ ٱللَّهُۖ فَكُلُواْ مِمَّآ أَمۡسَكۡنَ عَلَيۡكُمۡ وَٱذۡكُرُواْ ٱسۡمَ ٱللَّهِ عَلَيۡهِۖ وَٱتَّقُواْ ٱللَّهَۚ إِنَّ ٱللَّهَ سَرِيعُ ٱلۡحِسَابِ 4

They ask you, [O Muhammad], what has been made lawful for them. Say, "Lawful for you are [all] good foods and [game caught by] what you have trained of hunting animals which you train as Allah has taught you. So eat of what they catch for you, and mention the name of Allah upon it, and fear Allah." Indeed, Allah is swift in account.

Sura Al-Mâ'ida (The Table), Verse: 87

يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُواْ لَا تُحَرِّمُواْ طَيِّبَٰتِ مَآ أَحَلَّ ٱللَّهُ لَكُمۡ وَلَا تَعۡتَدُوٓاْۚ إِنَّ ٱللَّهَ لَا يُحِبُّ ٱلۡمُعۡتَدِينَ 87

O you who have believed, do not prohibit the good things which Allah has made lawful to you and do not transgress. Indeed, Allah does not like transgressors.

Sura Al-Mâ'ida (The Table), Verse: 88

وَكُلُواْ مِمَّا رَزَقَكُمُ ٱللَّهُ حَلَٰلٗا طَيِّبٗاۚ وَٱتَّقُواْ ٱللَّهَ ٱلَّذِيٓ أَنتُم بِهِۦ مُؤۡمِنُونَ 88

And eat of what Allah has provided for you [which is] lawful and good. And fear Allah, in whom you are believers.

Sura Al-An'âm (The Cattle), Verse: 118

فَكُلُواْ مِمَّا ذُكِرَ ٱسۡمُ ٱللَّهِ عَلَيۡهِ إِن كُنتُم بِـَٔايَٰتِهِۦ مُؤۡمِنِينَ 118

So eat of that [meat] upon which the name of Allah has been mentioned, if you are believers in His verses.

Sura An-Nahl (The Bee), Verse: 114

فَكُلُواْ مِمَّا رَزَقَكُمُ ٱللَّهُ حَلَٰلٗا طَيِّبٗا وَٱشۡكُرُواْ نِعۡمَتَ ٱللَّهِ إِن كُنتُمۡ إِيَّاهُ تَعۡبُدُونَ114

Then eat of what Allah has provided for you [which is] lawful and good. And be grateful for the favor of Allah , if it is [indeed] Him that you worship.

Sura Al-Mu'minûn (The Believers), Verse: 51

يَـٰٓأَيُّهَا ٱلرُّسُلُ كُلُواْ مِنَ ٱلطَّيِّبَٰتِ وَٱعۡمَلُواْ صَٰلِحًاۖ إِنِّي بِمَا تَعۡمَلُونَ عَلِيمٞ 51

[Allah said], "O messengers, eat from the good foods and work righteousness. Indeed, I, of what you do, am Knowing.