Qur'anic verses - Permissible foods:

Food and drink have direct effects on the mind and body. In this respect, all things that are pure in themselves and good for well being are lawful in diet.
The meat of the cattle and birds are made lawful:
The cattle is made
lawful unto you (for food)
[Qur'an 5:1]
And We gave you the
shade of clouds and sent down to you Manna and quails, saying: "Eat of the good
things We have provided for you:"
[Qur'an 2:57]
The dairy products are made lawful:
And verily in cattle
(too) will ye find an instructive sign. From what is within their bodies between
excretions and blood, We produce, for your drink, milk, pure and agreeable to those
who drink it.
[Qur'an 16:66]
The sea food is made lawful:
To hunt and to eat
the fish of the sea is made lawful.
[Qur'an 5:96]
The drink, that is the essence of the earth's vegetation made by the Bee, is healing for people: [see, The Bee]
And thy Lord taught
the Bee to build its cells in hills, on trees, and in (men's) habitations; Then
to eat of all the produce (of the earth), and find with skill the spacious paths
of its Lord: there issues from within their bodies a drink of varying colours, wherein
is healing for men: verily in this is a Sign for those who give thought.
[Qur'an 16:68-69]
The fruits are made lawful in expanse:
It is He Who produceth
gardens, with trellises and without, and dates, and tilth with produce of all kinds,
and olives and pomegranates, similar (in kind) and different (in variety): eat of
their fruit thereof when it fruiteth.
[Qur'an 6:141]