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Concerned about vitamin D toxicity?

Vitamin D toxicity is a rare imbalance, usually caused by excessive vitamin D supplementation, that can lead to hypercalcemia (increased calcium in the blood), hyperphosphatemia (increased phosphate in the blood), and suppressed serum PTH...

Let’s Level the Playing Field with Vitamin D

Racial Disparity There is a branch of the National Institutes of Health, the medical research agency of the United States, called the National Institute on Minority Health and Health Disparities (NIMHD) whose charter is...

Vitamin D Intake & Toxicity

Is your doctor telling you that you are taking too much vitamin D? The chart below, based on a review published by Hathcock et al., shows the incidence of vitamin D toxicity in relation to daily...

FAQs

Frequently Asked Questions About Vitamin D Frequently Asked Questions about D*action Frequently Asked Questions About the D*action+Omega-3 Project Frequently Asked Questions about the Omega-3 Index Test Frequently Asked Questions about Performing the Blood Spot...