I think the D needs to be at 10,000 IUs daily, especially through the low sun winter months. Even Fauci admitted on the side he takes 9,000IUs a day to prevent it. It's a tiny capsule and D is best absorbed with K2. https://www.pureencapsulationspro.com/vitamin-d3-10-000-iu.html
Vitamin D3 250 mcg (10,000 IU)
Supports healthy bone composition‡ Promotes cellular support for breast and prostate tissue‡ Made with hypoallergenic, vegetarian ingredients Vitamin D3 naturally supports calcium absorption and retention within bones to promote optima
https://www.pureencapsulationspro.com/vitamin-d3-10-000-iu.html
