How To Test Vitamin D Blood Test?
Start by checking your 25-hydroxyvitamin D levels with the Zinzino Vitamin D Blood Test. There are various methods to assess vitamin D stores in your body, and Zinzino relies on best-practice lab analysis for superior accuracy.
A 25-hydroxyvitamin D (25-OH D, also called calcidiol) test is the gold standard for monitoring vitamin D status as it reflects intake from food, supplements skin synthesis, and tells you whether your levels are optimal, too high or too low.
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