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If you are taking large doses of vitamin D (lets say more than a few thousand a day) get your serum levels checked from time to time. I had been taking 5-10k per day in 5k IU pills regularly and my levels were right at the top of the safe range.

Too much vitamin D can screw with your calcium and thus nervous system.




Can someone please explain to me the toxicity of vitamin D and how it interacts with K2? I feel like K2 isn’t mentioned often in discussions about vitamin D and I wonder why this is.


It is almost always ignored, and it is critical to proper Vitamin D utilization.


There is an app for that of course :-) - Calcium Pro and Vitamin-d Pro [1] [2] (also for Android users)

And please read this article explaining relations between calcium, vitamine D and parathyroid if you have time [3]

[1] https://apps.apple.com/us/app/calcium-pro/id587386613

[2] https://apps.apple.com/us/app/vitamin-d-pro/id796680824

[3] https://www.parathyroid.com/low-vitamin-d.htm


As I understood it -- if you're tested low, you can take 5 - 10k per day for about a month to restore your levels, then drop down to 2 - 5k daily. High doses over a long period is toxic, and low doses are ineffective.


I'm taking 5k IU daily. How long it took you to get to the top of the safe range?


Even if your bodies are pretty similar, you still don't know if your vitamin D levels will follow the pattern that his did. If you're messing with vitamin D supplements you should talk to a doctor and/or get your blood tested.




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