If you look at the purported dangers of salt or fat, there is no consensus of support in scientific literature. So I would ask first: 'Is it possible to have an informed government that actually follows the science?' From what I've seen, it's not likely.
Being, belief and reason are pure relations, which cannot be dealt with absolutely, and are not things but pure scholastic concepts, signs for understanding, not for worshipping, aids to awaken our attention, not to fetter it.