Doctors use the 25-hydroxy vitamin D test to monitor your vitamin D levels. Low levels can mean you need to spend more time outdoors or adjust your diet. But it can also occur with certain medical ...

‘Tis the season for health and wellness. Well, really anytime is the time for wellness, and Swanson Health agrees. However, before the holidays with travel, eating and drinking galore, supporting your ...

Vitamin D tests involve taking a blood sample to measure the vitamin D levels in your bloodstream. There are two forms of vitamin D in the blood: 25-hydroxy vitamin D, or calcidiol, and 1,25-dihydroxy ...

Vitamin supplements are incredibly popular all over the world. Many people believe that taking vitamins can improve health or make up for a diet that’s low in nutrients. There are several different ...

Vitamin D is essential for many bodily processes, particularly the development of healthy bones. A 25-hydroxy vitamin D test can reveal whether the vitamin D levels in a person’s blood are within a ...