Precious Roy wrote:
Co-morbidity is big deal with COVID 19 because most people end up in critical condition because their lungs fill up with fluid and scar tissue and they go into a cytokine storm. That puts a lot of stress on all your organs, particularly the heart and kidneys (many who end up on a ventilator also need dialysis). So, if you have a heart condition, diabetes, etc. you are far more likely to not be able to survive in the sever oxygen depletion and the stress it puts on your body versus someone who is healthy. Pumping yourself up with vitamin D isn't going to reverse your heart disease, hypertension or diabetes. So, vitamin D levels are probably just a correlation with good health and bad health and have no independent bearing on COVID 19 mortality.
So look up vitamin D correlation with each of those co-morbidity factors you mention, you will be pleasantly surprised. Obviously no one is saying you can live a horrendous lifestyle and avoid disease though a vitamin D pill.