Primal Protocols
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Vitamin D

Vitamin D at a Glance

  • Primary Role: Crucial for bone health and calcium absorption.
  • Classification: Vitamin
  • Solubility Type: Fat-Soluble
  • Measurement Unit: IU
  • Also Known As: Cholecalciferol , Ergocalciferol
  • Best Taken:Anytime · With Food

Absorption & Storage

Fat-soluble vitamins are stored in body fat and the liver. They are best absorbed with a meal containing fat, and long-term high supplemental doses can accumulate.

Males

Age Group RDA
9–13 years 600 IU
14–18 years 600 IU
19–30 years 600 IU
31–50 years 600 IU
50+ years 600 IU

Females

Age Group RDA
9–13 years 600 IU
14–18 years 600 IU
19–30 years 600 IU
31–50 years 600 IU
50+ years 600 IU
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Why do you need Vitamin D? Getting enough Vitamin D is essential because it naturally crucial for bone health and calcium absorption.

When is the best time to take Vitamin D? Vitamin D is best absorbed with a meal that contains fat; time of day is not critical. source

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