Well as the action taken. To show their participation. Maintain social status or economic necessity. Not necessarily always accurate and realistic to the prohibition on consumption (food taboo).
As the action taken, to show social status. treatment involvement or to the economic needs without the need to have a reason. Restrictions on consumption (Food taboo).
It is an act that is to maintain the status of participation in society, or to the economic necessity and does not need to be valid, and there is always reason to prohibit the consumption (Food taboo).