The havent got MasterJohns Vitamin D update censored yet. About 4:15 to 5:10 he talks about whether the infection lowered D levels and claims that is a possibility.
At the end he recommends around 1000IU if you cant test(to reach 30ng/ml) with a maximum of 1700IU (thus the confusion from earlier posting). Not sure if we could say anyone is more informed about it than him as far as taking advice.
Dr. Rhonda Patrick seems to be more informed about Vitamin D and its uses compared to Dr. Masterjohn.
There are many doctors and researchers who believe you have to have more than 1700 iu to reach the optimal level.
Here is a study showing that in healthy adults they need "a dose of 95 microg/d (3800 IU) for those above a 25(OH)D threshold
of 55 nmol/L (22 ng/ml) and a dose of 125 microg/d (5000 IU) for those below that threshold" required to attain serum 25(OH)D
concentrations >75 nmol/L (30 ng/ml).
https://www.ncbi.nlm...pubmed/18541590
Edited by lancebr, 01 May 2020 - 12:12 AM.