Coronavirus note – This is a new virus and nobody knows how well cold/flu supplement trials apply to coronaviruses. The novel coronavirus is too new and is not structurally the same as either influenza or the various cold viruses. Do not rely on supplements if you suspect you have COVID-19. Please see your physician. We do encourage you to practice good sanitation (handwashing) and support a strong immune system.
Evidence for cold and flu: Vitamin D can help prevent upper respiratory infections. Nothing in the body works properly at low levels of vitamin D, especially the immune system. Vitamin D is the ultimate immune system balancer. Most experts consider 50-80 nmol/L optimal. It’s a good idea to test your Vitamin D levels and make sure that you have enough Vitamin D in your system.
Vitamin D is being called “the nutrient of the decade” by many scientists and researchers. Literally hundreds of studies over the past few years have established its importance to health and longevity, supporting bone and cardiovascular health.
Vitamin D is actually a prohormone and is essential to the health of most organs, including the brain, heart, skin, reproductive glands, prostate gland, and mammary glands. Vitamin D receptors are also involved in immune regulation and mediate response to infection and inflammatory processes.
Average blood serum levels of Vitamin D have dropped over the past decade to the point that, according to a recent study, 77% of Americans have insufficient amounts. Obesity is one of the reasons for this increase because fat retains Vitamin D, making it less available to the rest of the body.
Vitamin A – Support eye health and help form healthy skin and hair
Vitamin K1 and K2 – To benefit blood clotting, bone health, and heart health