Weekly Health Quiz: BFR and COVID-19

1 Which of the following can cause hypercalcemia (toxic buildup of calcium in your blood)?

  • Insufficient calcium intake
  • Insufficient vitamin K2 intake in relation to vitamin D3

    Hypercalcemia is caused by insufficient vitamin K2 in relation to vitamin D, not vitamin D per se. Vitamin K2 deficiency is what causes "vitamin D toxicity" symptoms. Learn more.

  • Excessive vitamin K2 intake
  • Insufficient vitamin D3 intake in relation to calcium

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