[neverdem]

Pardon my ignorance - what is considered an ‘overdose’ of Vitamin D??

My SO is a chronic/recurrent A-FIB sufferer, and has been taking 5000IU of D3 for the past year - could this be of concern to her??

If it was me, then I would get the serum 25-hydroxyvitamin D test to make sure it was below the upper limit of normal. This links a quick tutorial about A Fib by a cardiologist. I'd want to rule out reversible causes of it. After that, it's time to see a cardiologist.

[Uncle Ike]

Thanks for the response, neverdem -

I guess I wasn’t very clear in my description of the situation - the onset of her A-Fib was more than two years ago, and she just started taking the D3 supplements approximately a year ago - so I guess my question was whether the 5000IU daily dosage would be considered high enough to exacerbate an existing condition...