Magnesium is an essential part of our diet that our body requires to function properly, but it remains something of a mystery to many people: What foods naturally contain vital amounts of the nutrient, what does it do, and what happens if we don’t get enough of it?

Benefits of Vitamin D

Vitamin D is perhaps best known as the “sunshine vitamin.” We get most of our vitamin D from sunlight but can also find it in foods such as tuna, cheese, and eggs and some foods, such as cereal and milk, are often fortified with the nutrient.

Despite its abundance, vitamin D deficiencies abound. One study estimates that as many as one billion people worldwide don’t get sufficient vitamin D. What is vitamin D? What happens when we don’t get enough of it? And how can we ensure that we do?