Original sentence: Food taboos usually seem to be intended to protect the human individual from harm, spiritually or physically, but there are numerous other reasons given within cultures for their existence.On a comparative basis, what may be declared unfit for one group may be perfectly acceptable to another within the same culture or across different cultures
Edited sentence: On a comparative basis, food taboos seem to make no sense at all as what may be declared unfit for one group may be perfectly acceptable to another.Whether scientifically correct or not, often food taboos are meant to protect the human individual, but there are numerous other reasons for their existence