Vitamin D differs from other essential vitamins because unlike other vitamins, our bodies can manufacture Vitamin D when ultraviolet sunlight rays strike the skin. This process is known as Vitamin D synthesis.

Many people associate Vitamin D with skincare. And they’re right. As low Vitamin D can damage the health, beauty, and longevity of your largest organ, your skin… But Vitamin D’s significance doesn’t end there.

Many experts tout Vitamin D deficiency as an under-the-radar “global epidemic” because low levels of Vitamin D have been linked to an increased risk of asthma, gum disease, depression, diabetes, high blood pressure, heart attack, rheumatoid arthritis, multiple sclerosis, and cancers of the breast, colon, prostate, ovaries, esophagus, skin, and lymphatic system.

Vitamin D has even been linked to brain function, fetal development, & obesity.

It’s no wonder Vitamin D is said to be the world’s deadliest vitamin deficiency.

In fact, a staggering 85% of people in the US are estimated to be Vitamin D deficient.

The target reading for Vitamin D > 30 ng/dl. How much does this cost?

Lab testing cost for Vitamin D varies more so than any other metric, so check with your physician’s office and/or health insurer.

Also, keep in mind that Vitamin D home-test-kits are available for online purchase from organizations such as and vendors on


Now that you know more about Vitamin D, let’s take a quiz 5 question quiz to test your knowledge.