The Vitamin D test is an immunoassay based on the principle of competitive binding. During testing,
the specimen migrates upward on the membrane chromatographically by capillary action. The membrane
is pre-coated with 25 (OH) D antigens on the test line region of the strip - the higher
concentration of antigens in the specimen, the lighter would be the T line. The result will be read
according to the colour card provided with the kit. To serve as a procedural control, a coloured
line will always appear in the control line region indicating that proper volume of specimen has
been added and membrane wicking has occurred.
Vitamin D refers to a group of fat-soluble secosteroids responsible for increasing intestinal
absorption of calcium, iron, magnesium, phosphate and zinc.
The health risks associated with Vitamin D deficiency are far more severe than previously thought.
Vitamin deficiency has been linked to various serious diseases: osteoporosis, osteomalacia, multiple
sclerosis, cardiovascular diseases, pregnancy complications, diabetes, depression, strokes,
autoimmune diseases, flu, different cancers, infectious diseases, alzheimer, obesity and higher
mortality. Vitamin D deficiency is now recognised as a global epidemic. Vitamin D helps regulate
calcium and phosphate in the body, which are essential nutrients for keeping bones, teeth and
muscles healthy.