I was tested six weeks ago and was at 23. I am now at 39. In addition to high dosage doctor prescribed D, I do “sensible” sunbathing as outlined in this fabulous book by the leading expert on Vitamin D. I highly recommend his book. I did not know how broad the reach of Vitamin D is to the human body in preventing many, many diseases. Plus, we do not only get Vitamin D from the sun but others factors that they are not quite sure what their function is in the human body. Getting sunlight is essential. http://drholick.com/
Which is why a lockdown is absolutely idiotic.