Life Extension Vitamin D and K with Sea-Iodine, and NOW Foods Vitamin D-3 & K-2. These supplements are highly recommended for their quality and effectiveness.

The NHS says all adults should consider taking vitamin D in the colder, darker months because the sunlight-derived hormone is ...

This unique vitamin is essential for all sorts of body functions, and especially for helping us maintain a strong skeleton.

With an abundance of cloud cover, colder weather keeping us indoors, and less sunlight during the day, our vitamin D levels ...

Now, the Institute of Medicine recommends ... Gender, age, diet, and health impact the requirements for calcium and Vitamin D. Milk, yogurt, cheese, and foods and juices fortified with calcium ...