Vitamin D - 5,000 IU/day feels a bit high and seems to be at the top end of recommendations. More importantly, don't forget Vitamin K2 (MK7 variant), as it's low in western diets and used in the mechanisms for calcium metabolism and heart health - essentially it moves calcium into the bones and out of the blood stream/kidneys, where it can cause problems.
The recommendations have been coming up over time, I think they used to be way too low. Ultimately, it's the blood serum level that matters. For a 6'1" Canadian guy who spends a lot of time indoors and gets no sun during the cold season because of the latitude I live at, 5000-10,000 isn't too crazy.
But if I lived in Ecuador and was a field worker, I may do things very differently.
Thank you for the links. The list of doctors and their recommended doses + what they do themselves is very insightful.
Yeah. Skin in the game, literally!
Vitamin D - 5,000 IU/day feels a bit high and seems to be at the top end of recommendations. More importantly, don't forget Vitamin K2 (MK7 variant), as it's low in western diets and used in the mechanisms for calcium metabolism and heart health - essentially it moves calcium into the bones and out of the blood stream/kidneys, where it can cause problems.
Hi Mark,
I do take K2-MK7 supplementation, good advice!
I wrote about vitamin D here:
https://www.libertyrpf.com/i/27286000/vitamin-d-to-fight-covid-and-just-generally-beneficial
Here's an open letter by 100 doctors about vitamin D and how much they supplement daily. A lot of them seem to cluster around 5000.
https://vitamind4all.org/letter.html
The recommendations have been coming up over time, I think they used to be way too low. Ultimately, it's the blood serum level that matters. For a 6'1" Canadian guy who spends a lot of time indoors and gets no sun during the cold season because of the latitude I live at, 5000-10,000 isn't too crazy.
But if I lived in Ecuador and was a field worker, I may do things very differently.