Vitamin D Test

Vitamin D Deficiency

As much as 80% of the population in the United States is estimated to have low vitamin D levels. Emerging studies show that low vitamin D is associated with an increasing cause of death from ALL causes₁. Low vitamin D is also associated with autoimmune diseases and overall immune health.

Recommended add-on test: 1,25 Vitamin D (active form)

Vitamin D Deficiency Causes

In a society that has almost every vitamin D type food available and abundant sunshine, many are left wondering, “Why are my vitamin D levels low”? The 7 most common causes for low vitamin D levels are:

• Misuse/overuse of sunscreen
• Diet high in processed foods
• Inactivity
• Stress
• Smoking
• Obesity
• Thyroid issues

Why Get Your Vitamin D Levels Checked?

This test will allow you to supplement with the correct dosage of vitamin D. Since you can overdose on vitamin D, it is recommended to be tested once a season in order to adjust supplementation and maintain optimal vitamin D levels.

Vitamin D deficiency has been shown in studies to increase the risk of:

• Autoimmune conditions like Multiple Sclerosis and Hashimoto’s
• Type 1 Diabetes
• Cardiovascular Disease
• Increased blood pressure
• Certain cancers

Vitamin D and Breast Cancer

Studies show a close correlation between optimal vitamin D and breast cancer. Many of these studies show that optimal vitamin D levels are associated with a 50% decrease in breast cancer risk₂.

What’s Being Tested:

• Vitamin D (25 Hydroxyvitamin D- dietary indicator; inactive form)
• Calcium Serum

Fasting: No

Specimen Type: Blood (Draw Location | How It Works | FAQs)

Turnaround time: 3-5 Business Days

Important Notes:

• This test cannot be collected in NY, NJ, MA, and RI. Contact us with questions.

¹Dobnig H, et al. Independent association of low serum 25-Hydroxyvitamin D with all-cause mortality. Archives of Internal Medicine. 2008 Jun 23:168:1340-1349.

²Vitamin D and prevention of breast cancer: A pooled analysis. The Journal of Steroid Biochemistry and Molecular Biology Volume 103, Issues 3-5, March 2007, Pages 708-711