INSTAPUNDIT READERS HAVE KNOWN THIS FOR MANY MONTHS: Vitamin deficiencies linked to respiratory conditions, including COVID-19. “Increasing vitamins A, E and D through diet changes or supplements reduces a person’s risk for breathing and respiratory conditions, including flu and COVID-19, a study published Tuesday by the journal BMJ Nutrition Prevention & Health found. People who consumed recommended amounts of the three key nutrients were less likely to develop the flu, colds, chronic obstructive pulmonary disease and asthma, the data showed. Research has linked vitamin D, in particular, with boosting immune system function, and being deficient in the nutrient has been found to increase a person’s risk for severe COVID-19.”

Toldja.