I have been tested, I am low normal D3.
We lived in a small Texas down in the 60’s and 70’s. They had a policy that said if a high school student had not missed a day and had at least a C average, they didn’t have to take the finals at the end of the school year.
Guess what happened? The students went to school sick and passed it to everyone in the high school who took it home to their younger siblings........
you get the picture. The entire town ended up sick with the flu.
We moved from there in 1979 and I was glad to leave.
The sickest I have ever been in my life I caught while on jury duty. Viral bronchial pneumonia, I thought I was dying.
You might need to be higher than ‘low normal’. Not everyone has the same uptake or utilization. Due to genetics. You might need a higher level. I felt much better when my levels reached ‘high normal’. YMMV, of course.
Check into adequate vitamin K(2) also. You need d3 and k2 to maintain healthy bones and arteries. I take thorne’s drops for k2. Ask your doc.
Tell me.