A country physician with an admirably candid blog and a great respect for vitamin D

That physician is Dr Ken D Berry and here is what he has written about vitamin D and the widespread need to take supplements of it. Dr Berry came to my attention initially because he left a helpful Comment on this blogpost of mine.

It is so refreshing to see a doctor who is not afraid of criticising the faults of his profession: faults like proffering firm advice on a subject about which they know very little, if anything. - See his blogpage about coffee and its effect on blood pressure, for example.