Scientific research on our D3FENSE immune booster's Ingredients

Vitamin D

Vitamin D protects against colds and flu, finds major global study February 16, 2017

Vitamin D supplementation to prevent acute respiratory tract infections: systematic review and meta-analysis of individual participant data

Vitamin D can protect against colds, flu: study claims

Exploring the Links Between Coronavirus and Vitamin D June 10, 2020

The Possible Role of Vitamin D in Suppressing Cytokine Storm and Associated Mortality in COVID-19 Patients

 Association of Vitamin D Deficiency and Treatment with COVID-19 Incidence


Vitamin C

The Antiviral Properties of Vitamin C

Vitamin C for Preventing and Treating the Common Cold

Effect of Vitamin C Infusion on Organ Failure and Biomarkers of Inflammation and Vascular Injury in Patients With Sepsis and Severe Acute Respiratory Failure: The CITRIS-ALI Randomized Clinical Trial

Lessening Organ Dysfunction With Vitamin C - COVID-19 - Full Text View



Selenium supplementation in the prevention of coronavirus infections (COVID-19)

 Selenium, Systemic Immune Response Syndrome, Sepsis, and Outcome in Critically Ill Patients

 Link identified between dietary selenium and outcome of COVID-19 disease

 Association between regional selenium status and reported outcome of COVID-19 cases in China

Selenium and Human Health

Impact of Trace Elements and Vitamin Supplementation on Immunity and Infections in Institutionalized Elderly Patients: A Randomized Controlled Trial. MIN. VITAOX. Geriatric Network

Host Nutritional Status and Its Effect on a Viral Pathogen



Randomized, Double-Blind, Placebo-Controlled Clinical Trial of the Efficacy of Treatment With Zinc or Vitamin A in Infants and Young Children With Severe Acute Lower Respiratory Infection

Hydroxychloroquine and azithromycin plus zinc vs hydroxychloroquine and azithromycin alone: outcomes in hospitalized COVID-19 patients

Z inc for the common cold—not if, but when

Reduction in Duration of Common Colds by Zinc Gluconate Lozenges in a Double-Blind Study

The Effectiveness of High Dose Zinc Acetate Lozenges on Various Common Cold Symptoms: A Meta-Analysis

The common cold in adults: Treatment and prevention