Get the best evidence because you want to know what they are looking at and occasionally people send me articles I was not aware of. Plus I ate spending my time sending them all the information then people say well ya but you are looking at the wrong evidence just right off the bat say “I will explain but tell me the evidence you are looking at” So he sent me 5 articles and I going to break them down in hopefully a rapid fire dissection And before we get started there is a very important piece of information that we all need to be clear on, low vitamin d DOES not mean that replacing the vitamin d then fixes the problem. We knew for a while that high HDL seem to have a protective cardiovascular effect but when we looked at the data it didn’t appear raising the HDL with a drug called niacin had an effect on cardiovascular events. This is the ultimate association and correlation connection. Sure it appears more popsicles consumed are associated with higher rates of drowning but getting rid of popsicles will not get rid of drowning. It appears more car accidents happen within 5 miles of your house and even more car accidents happen within 100 miles from your house but if you get rid of driving within 5 or 100 miles of your house you do not get rid of car accidents so it takes me to the First article- https://www.mdpi.com/2072-6643/12/9/2757/htm In journal of Nutrients titled Vitamin D Deficiency and Outcome of COVID-19 Patients This is observational data looking at the associations of vitamin D (VitD) status with disease severity and survival and Quick take away- Our study demonstrates an association between VitD deficiency and severity/mortality of COVID-19, highlighting the need for interventional studies on VitD supplementation in SARS-CoV-2 infected individuals. Yes I agree with everything they just said but does replacing the vitamin level with supplements then mean you have a better outcome. This article doesn’t touch on that Second article- Also in journal of nutrients titled- Evidence that Vitamin D Supplementation Could Reduce Risk of Influenza and COVID-19 Infections and Deaths This is a review article. Review articles are never ever to be used as evidence because the authors have a story they want to tell and they set out to write a paper that tells their story. When you write a review article you never set out with a hypothesis and then you the scientific method to accept or reject the null. You start with a goal in mind and look for papers to confirm your goal. Review articles are the ultimate in confirmation bias. Anytime anyone ever gives you a review article as evidence you should automatically question medicine and politely hand it back to them and say, “thank you but I would prefer something higher than “expert opinion”. Articles 3- next article was from scientific reports, titled- https://www.nature.com/articles/s41598-020-77093-z Analysis of vitamin D level among asymptomatic and critically ill COVID-19 patients and its correlation with inflammatory markers This was a continuous prospective observational study that look to analyze the vitamin D level in COVID-19 patients and its impact on the disease severity. Basically they looked at patients vitamin d level during the course of follow up and then used statistical analysis to see if there was an association between vit d levels and severity of illness. The results found that “vitamin D deficiency (as suggested by serum 25 (OH)D concentration t hit one button on the bed to get the results of a bmi. This paper while may look good just on the service is far far far far far from a slam dunk and between the combination of being open label, randomizing people And really this should only be used by att(continued)