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My grandma went to the ER due to feeling nauseous and confused and they concluded it was Vitamin D toxicity from supplementation. She heard online that it’d help her avoid catching the flu.

Just a reminder that you should get a blood test and advice from a medical professional before taking anything above the daily recommended amount.

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I agree 100%. But even with a blood test you need to be careful! I was taking 1000iu (doctors orders after a blood test) for about a month and it made my calcium spike above the normal range. I have freaky genes when it comes to Vitamin D and should have been taking more Vitamin K7 with it. But I now get it all from seafood, mostly salmon, since salmon also contains calcitonin [1].

[1] Evidence that calcitonin stimulates 1,25-dihydroxyvitamin D production and intestinal absorption of calcium in vivo.

https://pmc.ncbi.nlm.nih.gov/articles/PMC423580/

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