What Time of Day Should You Test for Vitamin D?
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4 min read
According to the National Institutes of Health, the standard 25-hydroxyvitamin D (25(OH)D) test measures the total vitamin D reserve in your body, which has a half-life of approximately 15 days. This means the specific time of day should you test for vitamin D has a negligible impact on the outcome, prioritizing consistency and convenience over a strict schedule.
