Vitamin D Testing ZRT Labs Vitamin D deficiency is a real problem today and does not have obvious symptoms, but increases your risk for more serious diseases. Researchers and experts say maintaining sufficient levels of Vitamin D are important in protecting the body from a wide range of illnesses, including flu, cardiovascular disease, osteoporosis, osteomalacia and autoimmune disorders such as multiple sclerosis. In addition, Vitamin D deficiency is closely linked to increase in risk for strokes, rheumatoid arthritis, diabetes (types 1 and 2), depression and several cancers, including breast and colon cancer. With ZRT’s innovative blood spot test, you can now take this simple test in the comfort of your home. Blood spot testing of Vitamin D can help: -Identify vitamin D deficiency as a potential cause of health problems -Recommend the right dose of vitamin D as a supplement -Monitor your D levels during supplementation to ensure you have adequate levels without overdosing -Understand appropriate ways to safely increase sunlight exposure and modify your diet to include more vitamin D containing foods and/or supplements -Track treatment progress