Vitamin D: Interactions of Vitamin D and Calcium

[Lima547]

Thanks for sharing! I believe videos like this encourages ordinary people's intellectual exercising and is a good manner to spread knowledge.

[charleysfarm]

I found this very informative. For myself, I can say that I tested with a low Vit D level and at the same time my nails were tearing and breaking easily which worried me. When I started taking 4,000 units of Vit. D twice a day my nails grew back hard and straighter than before. They no longer break or tear easily. I also see your nails as a warning sign of where your bones are at. Thanks for putting this on youtube!

[rosepaigefly]

Excellent info - cheers