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Question
Posted by: Jess | 2010-08-13

Vit K

I just read an article in the diet and nutrition section about the different vitamins. With regard to Vit K it doesn''t state that it aids the absorption of calcium, yet there are products on the market saying their calcium products are superior as it contains extra Vit K to promote absorption and avoid calcium buildup in the blood stream. Do you have any views on this and the function of vit K?

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Our expert says:
Expert ImageDietDoc

Dear Jess
The calcium products such as MenaCal.7 which contain vitamin D and vitamin K, were developed after the publication of a large study conducted in New Zealand with more than 1400 adult women. The researchers found that taking calcium supplements without also taking vits D and K, caused an increased in cardiovascular events (i.e. increased risk of heart attacks and strokes). It would, therefore, seem prudent to take calcium supplements that contain vits D and K to ensure that the calcium is deposited in the skeleton and not in the arteries. Vit K is, therefore, regarded as important in the deposition of calcium in the bones, not the absorption of calcium from the digestive tract.
Hope this helps
DietDoc

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Our users say:
Posted by: DietDoc | 2010-08-14

Dear Jess
The calcium products such as MenaCal.7 which contain vitamin D and vitamin K, were developed after the publication of a large study conducted in New Zealand with more than 1400 adult women. The researchers found that taking calcium supplements without also taking vits D and K, caused an increased in cardiovascular events (i.e. increased risk of heart attacks and strokes). It would, therefore, seem prudent to take calcium supplements that contain vits D and K to ensure that the calcium is deposited in the skeleton and not in the arteries. Vit K is, therefore, regarded as important in the deposition of calcium in the bones, not the absorption of calcium from the digestive tract.
Hope this helps
DietDoc

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