A new study carried out by researchers from Singapore suggests that daily doses of vitamin D3 (1000 IU), magnesium (150 mg), and vitamin B12 (500 mcg) may reduce the severity of disease in older patients infected with the coronavirus. Administered in a hospital setting for a period of up to 14 days, the nutrient combination was found to significantly reduce the proportion of patients suffering clinical deterioration who required oxygen and/or intensive care support. The researchers say that as all three of the nutrients they used are readily available, safe, and inexpensive, the combination could benefit a large swath of the global population, especially in economically challenged countries.