Medically reviewed by Soma Mandal, MD A vitamin D test is a blood test that measures the level of vitamin D (calciferol) in ...

New research finds that taking a daily vitamin D supplement may help lower blood pressure, especially for older adults with ...

Can vitamin D supplements prevent heart disease? A new study finds no impact on cardiac health in older adults, even with ...

Vitamin D is produced naturally by the body when it's exposed to sunlight, but during the UK winter months, many people are ...

After discovering I was vitamin D deficient, I started religiously taking supplements, and I've never felt better.

Growing up, I was told to drink orange juice when I had a cold because “vitamin C is the cure.” Does vitamin C actually help ...

Sufferers often have few symptoms but too little can affect day to day life and can be serious for long-term health ...

Osteoporosis, a disease that weakens your bones, is also called a “silent” disease because there are no warning signs until a ...

Besides back pain, being deficient in the vitamin may also lead to other symptoms such as tiredness, increased susceptibility to illness, feelings of anxiety and delayed healing of wounds ...

The Vitamin D Blood Test (25-OH Vitamin D): Who, How, When, and Where Clinically speaking, things began to change in the 1970s when the blood test for vitamin D (known as the "25-OH vitamin D ...