I tend to focus on things that are in question, and there is no "controversy" about what happens if you only eat tiny amounts of omega 3s and/or omega 6s, that is, Mead acid will replace AA or an omega 3 (most likely AA). This is assuming you are in fairly good health and don't have major deficiencies of certain vitamins or minerals. You might want to take a look at:
http://www.westonaprice.org/knowyourfats/tripping.html
though I disagree with the notion that omega 3s and/or 6s are "essential." You can do other searches for Mary Enig and read her material on various fat issues.
One thing that is clear is that AA is replaced by Mead acid (again, assuming good health and diet) at different rates, depending upon the type of cell. To get almost all the AA out of your cells, if you already have AA in your cells (as most people now do), you will have to eat a certain diet and give it about two years. Most of the AA in your cells does not get there directly from your diet. Instead, the most common dietary PUFA (in the "civilized world") is called linoleic (an omega 6), and it is this molecule that is acted upon by enzymes and made into AA and incorporated into "cell membranes." Now if you want to delve into some really technical information, you can find these kinds of studies online:
http://www.jlr.org/cgi/content/abstract/14/3/296
and:
http://www.springerlink.com/content/n8969l71u38537h1/ |
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