Can you take to much Vitamin D?!
Question:
Can you take to much Vitamin D?
Answers:
According to an article published by the Journal of the American Nutraceutical Association, Dr Robert Haney, a professor at Creighton University School of Medicine (who has studied Vitamin D for over 20 years) has shown that over 10,000 iu of Vitamin D would need to be sustained until signs of toxicity begin to show.
The reference level of Vitamin D is 200 iu per day so chances are your intake is coming no where near the upper safe limits.
Based on research from this group, a call has been made to increase Vitamin D fortification of food with a total daily target of 4,000 iu.
This is because several studies have shown remarkably low levels of Vitamin D in people, even mothers who are taking prenatal vitamins. One study showed that over 90% of babies born have dangerously low levels of Vitamin D at birth in spite of the fact that over 90% of the women in the study were taking supplementation. This shows that the current reference amount of 200 iu is simply too low.
Said Dr Heaney, "The principal obstacle has been we haven't known how much vitamin D we have needed until the past to years." This also means that unless your own doctor or pharmacist actively studies nutritional research, they won't know about the latest research and are going by guidlines established by the National Academy of Sciences in the 1940.