Plus, how to tell if you need to supplement at all.

Some food sources do in fact contain vitamin D – including oily fish (such as salmon or sardines), red meat, egg yolks and fortified cereals. However, only a small proportion (roughly 10–20%) of our ...

The cardiologist didn't believe it was a big deal. Am I doing the right thing?

It might help your sleep, too.

If symptoms develop soon after taking a supplement, intolerance to supplement ingredients is also a possibility. Since ...

Magnesium and vitamin D help with bone health, mental health, and cardiovascular health. It's usually safe to take magnesium and vitamin D together.

How long it takes for vitamins and supplements to work depends on factors like the type of vitamin, your diet and hydration, and how regularly you use it. Learn how to make the most of your vitamins ...

Low vitamin D levels may affect ovarian reserve, egg quality, and IVF outcomes. Here’s how deficiency can influence fertility and what women should know.

Looking to increase your vitamin D intake? These foods contain more vitamin D than an egg and are easy to incorporate into your eating pattern.

Vitamin D is vital for numerous bodily functions. While sunlight is the primary source of vitamin D, record high temperatures this summer may dissuade people from spending time in the sun. An expert ...

DEAR DR. ROACH: My blood work showed that I was slightly low in vitamin D, so my doctor recommended that I take a supplement. My pharmacist was concerned and told me that vitamin D does not get ...

K2 helps calcium stay in the bones and out of the blood vessels. It also has nothing to do with vitamin D absorption.