Vitamins

How Genetic Variants Impair Vitamin D Production

How Genetic Variants Impair Vitamin D Production By Dr. Emily Brown Reeves, PhD, CNS The prohormone 25-hydroxyvitamin D (calcidiol), which is measured in serum, is the standard clinical measurement for vitamin D status.  25-hydroxyvitamin D is used to assess vitamin D status because it is a stable metabolite with a half-life of 15 days. The active …

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Two sides of Iron: Anemia & Hemochromatosis

Do I need Iron? Or do I have Hemochromatosis (Iron overload)? By Dr. Emily Brown Reeves, PhD, CNS Iron is a critical nutrient required for proper cellular function. Blood formation, oxygen transport, energy production, detoxification and DNA synthesis all depend upon the iron atom.   Daily requirements for iron depend on an individual’s gender, genetic makeup, age and …

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Vitamin D Basics

Vitamin D — the basics and a little more! By Dr. Emily Brown Reeves. PhD. CNS. Vitamin D exists as a preprohormone, prohormone, and hormone in the body. The preprohormone has two forms cholecalciferol (Vitamin D3) and ergocalciferol (Vitamin D2).  Food sources of Vitamin D3 include cod liver oil, salmon, swordfish, tuna, liver, and eggs.  Vitamin …

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