> If everyone is deficient, then it must not be that important.
Most people are overweight. Does that make being a healthy weight not that important?
Most people are overweight. Does that make being a healthy weight not that important?
Here are a few highly-cited articles to get you started:
https://link.springer.com/article/10.1186/1471-2458-9-88 https://www.nejm.org/doi/full/10.1056/NEJMoa1614362