Flax is a poor source of the important omega-3 fatty acid for human health - DHA. Flax (indeed all plant sources) are mainly alpha linolenic acid the parent fatty acid and it is the chain-elongation of that fatty acid by the body that turns them into the necessary EPA and DHA. Unfortunately the conversion factor is pretty poor and highly variable depending on several factors, including age, gender and current tissue levels of the long-chain forms (the less you have the less the ALA is converted).
It is far more effective to get your long-chain EPA and DHA from sources like krill or fish oil or fresh oily fish like salmon, etc.
The other main drawback of plant sources of omega-3 is that they usually come with a large amount of omega-6 and other PUFAs. As the *** Erasmus article indicates, it is not so much the absolute amount of omega-3 that you take but the ratio between it and omega-6. Keeping omega-6 low means you need less omega-3 to have an effect. This ensures that overall PUFA intake can be kept low avoiding risks of heart disease, diabetes, cancer and general immune deficiency.
Having said that, omega-6 should be slightly higher than omega-3 (around 4:1, but not much more than that!) because the skin needs almost exclusively omega-6 for health and the skin is the largest organ of the body!


LinkBack URL
About LinkBacks
Reply With Quote








Bookmarks