Some people may remember Grandma always saying to take your cod liver oil. As foul- tasting and pungent as it was, Grandma was onto something. At one point, it was fairly common knowledge that a person should take cod liver oil for general health purposes, but that knowledge was lost in more recent generations, perhaps because it was so awful-tasting and how could something so unpalatable be good for you? While this may seem like rather poor rationale, perhaps they were onto something also! It turns out that cod liver oil can actually be harmful due to toxic levels of Vitamin A. Considering the liver is the filter of the body, perhaps this should come as no surprise!