Why are you guys on the right always so knee jerk to everything? It is a basic pillar of conservatism that the government should only intervene in the markets when there is a market failure.
Folks, in terms of our food consumption and choices, we obviously have ourselves a market failure:
It has gotten so bad that it's literally like crack to some Americans:
In all seriousness, humans like most land mammals have evolved with a strong craving for salt because salt is usually in very short supply for land animals in nature. However, the problem is now that we have an abundance of salt available to us today, yet we still have the cravings for it that are an evolutionary adaption to living in an environment where salt was scarce. Thus, there is probably a role for regulating salt content in processed foods, or at the very least doing a better job with product labeling in regards to salt content.