Postby Harriet » Thu May 24, 2012 9:38 am
OKay, your posts have been inspiring. I thought that yesterday but didn't get a chance to mention.
Thanks for link, Kathryn. I hadn't heard much about this and I don't take a calcium supplement, which may make me unusual for a woman my age. I remember reading that we get calcium more efficiently from green vegetables than from dairy, which is part of what made me eat plenty of fresh spinich, kale, etc. Then I learned that most green veggies with plenty of calcium should be eaten cooked by anyone with thyroid concerns. LOL. There sure can be twists and turns to find what's best for the individual, that's the truth. I've heard it argued that no one ever died from supplementation of vitamins. Calcium as a mineral rather than a vitamin, though, would not be included in that optimistic thinking, and yes there would be a point of toxicity, one would think.
The Serum Level Vs Intake study of Vitamin D (Univ of Calif) which is still going on, but has tested 3,600 people so far, has found no toxicity up to 10,000 IU a day, and up to 200 ng/ml blood levels of the individual. D is made in our own bodies all the time, and is a hormone, not a vitamin at all, really.
My general thoughts are that whole-food supplements are wiser than their competitive ones made artificialy, so one thing I try to do is buy whole-food vitamins when I can.