Posted by IsoM on May 18, 2002, at 2:08:42
In reply to Re: Addison's and Too Much Zinc » IsoM, posted by Emme on May 17, 2002, at 15:44:16
Oooo! I like that title - "board nutritional consultant"!
I think (& many others do too) that the RDAs of vitamins & minerals that were developed years ago are too low for many nutrients, especially in our times now. But that doesn't mean lots more is good either. About 200 mcg selenium & 25-30 mg zinc is probably about right. Don't forget that if your diet is good with lots of unrefined foods, fruits, & vegetables (especially home or organically grown), you won't need to add that full amount as a supplement.
I have gentically thin, fine hair too - it's never been real thick. But it is very healthy hair! Soft, shiny, & silky - too much so; impossible to style without adding hair gel. I cut my own hair but the few times I've gone to hairdressers, they've commented on how strong & healthy my hair is & were envious. I just told them they should try styling it everyday like me. That's why I keep it short now. So thin hair isn't always indicative of poor health or diet. My hair hasn't thinned any over the years & despite being 52, I have little grey in it.
As for the amount of B vitamins needed, that's trickier. The more active your thyroid (or conversely, the lower your TSH level), the more B vitamins are generally needed. Faster metabolism needs more B vitamins. I just aim for what makes me feel physically at my best with no problems. They're water-soluble, so if you err on the generous side, it'll just wash out of your body & not build up.