I take 5,000 IUs every day.
Doc put me on that for the month prior to hip replacement in 2020, and I felt great. Then Covid came, and D3 was recommended for prevention. So I never stopped taking it.
I’m still old though. My telomeres must be defective or something.
>>>I take 5,000 IUs every day.<<<
Me too!...................
I’m 74 and take 12000 IU’s of D3 per day with vit, K2 which is recommended to take with D3.
I’ll drop my intake soon because of more exposure to the sun this spring and summer.
You might take vit K-2 in conjunction.
Best wishes.