
In severe cases, it can cause vitamin D toxicity, also known as hypervitaminosis D.Īlthough vitamin D toxicity is not common, it can be serious when it occurs. When the supplement is taken in too-high doses, it can build up in your fatty tissues and increase the risk of unpleasant side effects. It also means that vitamin D levels build up in the blood because it is stored in body fat and in the liver until your body uses it (unlike with water-soluble vitamins where excess amounts are flushed out in your urine). That means it’s best absorbed when taken along with fats such as olive oil or nuts. It is a fat-soluble vitamin, like vitamins A, E, and K. It’s possible to take too much vitamin D, also known as calciferol. For example, too much vitamin D can lead to toxicity-and that can cause some serious health problems.

A daily multivitamin is often recommended by healthcare professionals, but when it comes to supplements, more is not always better. They take a vitamin-or maybe several-each with a single mineral or a specific mix. Millions of people start their day the same way.
