What food is forbidden in Islam?

The list is specific and short, which is the first surprise: “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.” (Qur’an 2:173)

And stated at more length: “Prohibited to you are dead animals, blood, the flesh of swine, and that which has been dedicated to other than Allah, 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. That is grave disobedience. This day those who disbelieve have despaired of defeating your religion; so fear them not, but fear Me. This day I have perfected for you your religion and completed My favor upon you and have approved for you Islām as religion. But whoever is forced by severe hunger with no inclination to sin - then indeed, Allah is Forgiving and Merciful.” (Qur’an 5:3)

So the forbidden categories are:

1. Carrion — an animal that died of itself rather than being slaughtered. 2. Blood, as blood. Residual blood in meat is not what is meant. 3. Pork, and by extension its derivatives. 4. Anything dedicated or sacrificed to other than Allah. 5. Intoxicants, which have their own verse.

What this means in practice is the reverse of how people often experience it. The default is permission: all seafood, all plants, all dairy, all grains, and all land animals other than pork and predators are lawful unless something specific makes them otherwise. There is no long list to memorise.

Two things worth noticing in those verses.

First, the reason given for prohibition is that the food was dedicated to something other than Allah — it is a matter of allegiance, not only of hygiene. That is why an animal slaughtered in another deity's name is forbidden even though the meat itself is the same.

Second, both verses end the same way: someone forced by necessity, without desiring it and without exceeding what is needed, commits no sin. Starvation lifts the prohibition outright. That clause is in the text itself rather than a later concession, and it tells you the prohibitions were never meant to endanger anyone.

The genuinely hard modern questions — commercial slaughter, gelatin, emulsifiers, alcohol in flavourings — are not settled by these verses alone and are asked separately.