PeanutBean
Mumma to B & I
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- May 19, 2008
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I've just been listening to The Food Programme on Radio 4. It was about omega 3 oils and was very interesting. My opinions of the supplements have always been low and of course as a vegetarian I am not able to supplement with this oil anyway.
The programme was looking at claims of omega 3 levels in foods advertised as being high. In brief, omega supplements are usually 3, 6 and 9 and apparently the 9 will do nothing and is not necessary, the 6 is already present enough in our diets so doesn't need supplementing and the 3 in most supplements and foods comes from plant sources and not fish. Now, again as a veggie, I'd wondered about plant sources but apparently they are short chain and humans are really crap at converting them to long chain which are the ones with benefits. So it would seem that nothing one can buy is likely to do any good, short of eating lots of fish anyway.
I was pleased to hear supplement things being rubbished (I am hugely cynical of nutritional supplements) but was more pleased to hear them mention vegetarians at the end. I had just been saying to DH how is it if these oils are so necessary that vegetarians tend to live longer than meat eaters and also suffer less heart disease etc. The answer was basically that they didn't know but they did say that for vegetarians the best supplements will come from marine algae.
Now, I am of course a marine biologist and we studied about these oils in my degree. I knew they came from marine algae and we learnt that lugworms (Arenicola) are massively higher in omega 3 than fish. I think the fish generally get it from eating invertebrates like lugworms. Lugworms get it from marine algae as well as from their own conversions.
I thought this was all very interesting so wanted to share it with the science club. Any thoughts?
The programme was looking at claims of omega 3 levels in foods advertised as being high. In brief, omega supplements are usually 3, 6 and 9 and apparently the 9 will do nothing and is not necessary, the 6 is already present enough in our diets so doesn't need supplementing and the 3 in most supplements and foods comes from plant sources and not fish. Now, again as a veggie, I'd wondered about plant sources but apparently they are short chain and humans are really crap at converting them to long chain which are the ones with benefits. So it would seem that nothing one can buy is likely to do any good, short of eating lots of fish anyway.
I was pleased to hear supplement things being rubbished (I am hugely cynical of nutritional supplements) but was more pleased to hear them mention vegetarians at the end. I had just been saying to DH how is it if these oils are so necessary that vegetarians tend to live longer than meat eaters and also suffer less heart disease etc. The answer was basically that they didn't know but they did say that for vegetarians the best supplements will come from marine algae.
Now, I am of course a marine biologist and we studied about these oils in my degree. I knew they came from marine algae and we learnt that lugworms (Arenicola) are massively higher in omega 3 than fish. I think the fish generally get it from eating invertebrates like lugworms. Lugworms get it from marine algae as well as from their own conversions.
I thought this was all very interesting so wanted to share it with the science club. Any thoughts?