Weekly Health Quiz: Vitamin D, Cherries and Concussions

1 Which of the following nutrients is required for the activation of vitamin D in your body?

  • Vitamin K1
  • Vitamin C
  • Calcium
  • Magnesium

    Magnesium is necessary for the activation of vitamin D. Without sufficient amounts of it, your body cannot properly utilize the vitamin D you're taking. Learn more.


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