A viewer asks: “Is the efficacy of Creator’s antivirals affected by a person’s vitamin D levels? A recent research paper, ‘Vitamin D: A key player in COVID-19 immunity and lessons from the pandemic to combat immune-evasive variants,’ suggests all viral infections are more effectively treated when patients have vitamin D levels between 30-60ng/mL. In 2011, the Endocrine Society urged that: ‘to guarantee sufficiency, we recommend between 40 and 60 ng/mL for both children and adults.'” What can we tell him?

This information is correct as far as it goes, that in general, adequate vitamin D levels are important because they are needed for many healthy bodily functions including support of the immune system. This is why we endorse the use of a basic complement of vitamins and minerals to supplement the diet. Most people do not get adequate levels of these key nutritional substances on a regular basis with today's diets and food sources, so supplementation is the best way to ensure there is no ongoing deficit in a key component. Particularly in developed countries, where people are spending most of their time indoors with their electronics, there is less and less sunlight exposure, which induces vitamin D synthesis in the skin, so vitamin D deficiency is widespread with respect to optimal levels.