The Most Important Paper Dr. Mercola Has Ever Written


  • Vitamin D optimization is likely the easiest, least expensive and most beneficial strategy that anyone can do to minimize their risk of COVID-19 and other infections in coming months
  • More than 1 billion individuals worldwide, across all age groups, are deficient in vitamin D, which has now been identified as a significant risk factor for positive COVID-19 status, severe COVID-19 infection and death thereof
  • In Indonesia, people with a vitamin D level between 20 ng/mL and 30 ng/mL had a sevenfold higher risk of death than those with a level above 30 ng/mL. Having a level below 20 ng/mL was associated with a 12 times higher risk of death
  • To improve your immune function and lower your risk of viral infections, you’ll want to raise your vitamin D to a level between 60 ng/mL and 80 ng/mL (150 nmol/L and 200 nmol/L) by fall
  • Vitamin D optimization is particularly important for dark-skinned individuals, as the darker your skin, the more sun exposure you need to raise your vitamin D level, as well as the elderly

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