All of the discussion in this post seem to lack attention to the
Food Industry Codex and the like.

I am posting the link to the USDA's Center for Food Safety & Applied
Nutrition put up about the two mentions of mineral oil in the GRAS
list.

The first deals with the phrase "mineral oil".

http://www.cfsan.fda.gov/~rdb/opa-g040.html

the second link: http://www.cfsan.fda.gov/~rdb/opa-g071.html is
largely a repeat of the information from the first.

I want to point out that food oils have probably been used by butchers
and the like for hundreds of years, before we had science sufficient
to make medical consequence determinations.

Never the less, it is unlikely that anybody at this ng can determine
that microbial state of your kitchen, utensils, etc. and all advice,
info, what-have-you should be taken with a grain of salt.