All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
In principle, such matters do not need permission from the parents, however, if it is known that your parents dislike you to eat any of these foods, then it is an obligation on you to obey them and not to eat it.
In general the parents do not prevent the children from such matters without a sound reason as it is their natural instinct to be affectionate with their children and care for their benefit.
Allaah Knows best.