In article >, "Bob Terwilliger" > wrote:
>Phred wrote:
>
>>>Again, bullshit. An EASY refutation is the eggs which contain Omega-3
>>>fatty acids.
>>
>> Are they the ones referred to he
>>
>> <quoting>
>> Egg Producers Deceive Consumers, Violate Law with Bogus Omega-3 Claims
>> </quoting>
>>
>> Article title from: <http://www.cspinet.org/new/200706211.html> FWIW
>
>I don't know, since I don't buy supermarket eggs. I can check the brands
>next time I'm in the supermarket, though.

Thanks Bob. I'd be interested to hear what you find. There's no
reason to think Omega-3 *can't* be passed through diet to the eggs in
chooks (think of the classic cases of taints in cow milk as a somewhat
similar example -- though perhaps one might expect the ovum to be a
bit more "protected" by evolution) but it would be interesting to have
some data on the biological consequences of this passage as it
relates to a third party (i.e. the consumer of the bacon & eggs :-).

For example, IIRC from my biochem 40+ years ago, one of the problems
with manufactured nutrients (I think it was vitamins specifically) is
that these molecules exist in two chemically similar but biologically
different forms: laevo [left handed] and dextro [right]. I forget
which way round is which, but one form is more common in nature while
the other tends to dominate in manufacture and may be rather
ineffective as a substitute. (Of course, chemical engineers may have
got their act together since my undergrad biochem days.

This is not to say that laevo/dextro is involved in passing Omega-3
though chooks to their eggs, but just given as an example of how
organic molecules can differ in biological effect in spite of a minor
change in their geometry. (How many forms of Omega-3 are there? Do
they differ in their "usefulness" to humans? Etc., etc.)

As an aside on the effects of laevo/dextro compounds, here's an
example from the article at:
<http://jpet.aspetjournals.org/cgi/content/abstract/60/2/198>
which may strike a chord with cat lovers. :-)

<quoting>
6. Laevo-miotine is approximately eight times more powerful an
antagonist of curare than is dextro-miotine when tested on the cat's
sciatic nerve preparation. L-miotine also antagonizes strychnine
methiodide.
</quoting>

Cheers, Phred.

--
LID