Vitalism is a belief that there is difference between living and noliving things. Living things are governed by different principles which are not applicable for nonliving things. The scientist now reject the vitalism since it lack scientific proof. It is considered only as spiritual. modern scientist believe life originated from non living things in the course of time.
According to the theory of vitalism all the living substances are special and are distinct from the non-living substances, that is, they comprise a unique entity within themselves. This soul or entity distinguishes them from the non-living components.
However, the theory was rejected when urea was taken out successfully from a non-living matter by Wohler, proving the fact that the biological constituents can be extracted from a non-living source. The modern scientists now believe that the living things are just more composite than the non-living substances.
Yes, the people of a culture can eat a diet that is normal for their culture if they want to follow the Kemper diet because there are a lot of natural foods are present in the culture. Kemper's diet is heavy on fruits and vegetables and relies on natural foods so the people has a large number of natural foods in their culture so by eating that natural foods they can follow the Kemper diet.