Long-time readers know that my “go-to” sources for natural medicines (herbs, vitamins, and supplements) are ConsumerLab.com and Natural Medicines(TM). ConsumerLab has posted about coronavirus and vitamin D:
Vitamin D supplements, taken daily in moderate doses, may help to reduce the risk of respiratory infections and viruses such as influenza A in children and adults who are deficient (< 20 ng/mL) or severely deficient (< 10 ng/mL) in vitamin D.
Although there is not currently any research suggesting vitamin D supplements decrease the risk of coronavirus infection specifically, maintaining an adequate blood level of vitamin D (25OH vitamin D, 20 to 30 ng/mL) by consuming vitamin D-fortified products (such as most milks, certain other dairy foods, and some plant-based milks), or taking a vitamin D supplement is a good, safe, preventative measure for protecting against respiratory infections in general.
To maintain healthy vitamin D levels, only 400 to 800 IU (15 to 20 mcg) of vitamin D3 is required daily, but, to boost low levels, higher doses, such as 2,000 IU daily, are used and are generally safe.
Very large doses of vitamin D, which have been taken periodically (such as 100,000 IU vitamin D2 taken monthly) may not be as helpful and could even increase the risk of respiratory infections in some people.
There are many vitamin D supplements on the market. ConsumerLab has tested a wide variety and has published its Top Picks in its Vitamin D Supplements Review, which contains additional information about using vitamin D, as well as its benefits, dosing, and potential side effects.
Of course, the most important thing you can do to avoid infection with coronavirus is to prevent exposure by following the latest recommendations of the CDC and World Health Organization and take steps to stay healthy, including getting adequate sleep, keeping up with your daily exercise, and eating a healthy nutritious diet.
© Copyright WLL, INC. 2020. This blog provides a wide variety of general health information only and is not intended to be a substitute for professional medical advice, diagnosis, or treatment from your regular physician. If you are concerned about your health, take what you learn from this blog and meet with your personal doctor to discuss your concerns.