Re: Re: flavonoids in Vitamin C is goitrogen

[Guest guest]

fragrance_seen,

You wrote:

>

> ...Chuck, I don't know if there is difference bt Flavonoids, but isn't this

> article mentioned all kinds of flavonoids?

>

There are over 4,000 flavonoids known.

Here is a current published paper that correctly says that _some_

flavonoids are goitrogenic. For the set they tested, the amount needed

to decrease de-iodinase activity by 50% varied from 11 micromoles to 77

micromoles. Clearly there is range of activities, of difference. The

type of flavonoids in millet evidently include at least one of the more

potent ones (especially vitexin).

http://cat.inist.fr/?aModele=afficheN & cpsidt=13723315

It is not clear that the putative anti-oxidant benefits correlate with

de-iodinase effects. So, it is possible that your vitamin C could have

flavonoids that just confer the benefits without the harm. However, it

is more likely that the label just says " flavonoids " or " bioflavonoids, "

something left over in rose hips, in which case you should probably not

take it, just in case. You can get C without the flavonoids rather

inexpensively.

Chuck