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Definitive Evidence Vitamin D Significantly Reduces COVID Infection and Death

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“Various studies have found an association between severe vitamin D deficiency and COVID-19-related outcomes. Vitamin D plays a crucial role in immune function and inflammation.”

“Interest in the nutraceutical approach, particularly in vitamin D, as a means to promote the immune response and reduce the inflammatory response has been growing. COVID-19 is characterized by high levels of inflammatory markers, including C-reactive protein (CRP), and increased levels of inflammatory cytokines and chemokines.”

“On the one hand, vitamin D maintains pulmonary barrier function, determines the production of antimicrobial peptides, and enhances neutrophil activity, boosting the innate response, and it shifts the adaptive immune response to a more T helper cell-2 (Th2) type. On the other hand, vitamin D reduces the production of pro-inflammatory cytokines,… it increases the anti-inflammatory response.”

“Vitamin D administration results in a decreased risk of death and ICU admission.”


Immune cells require Vitamin D to function properly, for their ability to kill viruses such as those responsible for COVID and FLU, and for their ability to control and regulate the inflammatory response responsible for Acute Respiratory Distress Syndrome which is what actually causes death in COVID, FLU and PNEUMONIA patients.

Supplementing with Vitamin D is an evidence-based, safe, highly effective way to significantly improve immune function, increase viral defense, and decrease susceptibility to infection and severe illness.


There is simply no logical reason not to supplement with Vitamin D (and omega-3 fatty acids and NAC and Quercetin and Vitamins and Minerals and Probiotic) – all of which represent evidence-based, effective approaches to optimizing immune function and viral defense, as well as improving inflammation and antioxidant status for health, wellness, prevention, and recovery.

Supplementing with Innate Choice® OmegA+D Sufficiency™, Vita-Immune Sufficiency™, and Probiotic Sufficiency™ is an evidence-based, effective, safe way to improve both IMMUNE FUNCTION and GENERAL HEALTH STATUS.

For more information and to purchase these immune boosting, health boosting, illness preventing supplements visit


Argano, C. et al. (2023) Protective Effect of Vitamin D Supplementation on COVID-19-Related Intensive Care Hospitalization and Mortality: Definitive Evidence from Meta-Analysis and Trial Sequential Analysis. Pharmaceuticals 2023; 16(1): 130

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