Lots of countries have indigenous populations; please clarify what country you are talking about - or whether you refer to the entire planet Earth.
WIKIPEDIA DEFINES INDIGENIOUS AS Indigenous means: belonging to a certain place. Therefore, any food could be considered indigenious in the part of the world in which they originated.
Africa
The population of True Religion is 809.
It is the religion of Islam. The Muslim population is 1570 millions as of October 2009. refer to link below.
The biggest population in Italy for religion wise would have to be Catholic.
Buddhist with 96.4% of the population practicing this religion.
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Population, and Religion.
Christianity
The main religion of Spain is Catholicism.Well, the main religion in Spain is Catholicism. 94% of the population is Catholic, but they do have other religions there too.
Major religion in India is Hinduism, about 80% of the population are Hindu. Major Religion in Bangladesh is Islam, about 70% of the population are Muslims. And the Major Religion in Pakistan is Islam, about 97% of the population are Muslims.
world population as per religion