A number of other studies made similar reports, though it is only a Spanish study, conducted in early September, that came close to incontrovertibly proving low vitamin D levels have a pivotal role in causing increased death rates. There, 50 patients with Covid-19 were given a high dose of vitamin D, while another 26 patients did not receive the nutrient. Half of patients who weren’t given vitamin D had to be placed in intensive care, and two later died. Only one patient who received vitamin D required ICU admission, and they were later released with no further complications.