Q: Thank you for sharing your latest groundbreaking research recently in New York.  Due to the overwhelming amount of questions, I was unable to ask the following: I take cod liver oil daily. In a 12/29/09 NY Science Times article it was recommended using flaxseed oil rather than fish oil as the latter contains unknown amounts of vitamin A, which in excess can be detrimental to bones. I am concerned with bone loss. What is your recommendation?

A:  It is only the liver oils that are rich in vitamin A.  The fish body oils are devoid of Vitamin A.  Flaxseed oil has no Vitamin A either, but the short-chain omega-3 fatty acids in flaxseed oil are very poorly converted to the long-chain omega-3 fatty acid (EPA and DHA) that gives fish oil its remarkable benefits.  I am surprised that the Science Times would make such statements without a little fact-checking.