Vitamin D3 at 5000 IU (125mcg) as cholecalciferol. This exceeds the optimal 4000 IU dose and is at a therapeutic level for correcting deficiency. D3 is the correct form. At Sam's Club bulk pricing, this is one of the best values in supplement vitamin D. Simple, single-ingredient, properly dosed.
The set is generated, never written by the brand.
Member's Mark Vitamin D3 5000 IU: the formulation holds up. Lead: Vitamin D3 at 125 mcg. Vitamin D3 at 5000 IU (125mcg) as cholecalciferol. Clinical dose on the primary, and the panel holds together.
5000 IU vitamin D for the 42% of Americans who are deficient. 400 softgels, over a year supply. Get a blood test to confirm you need this dose. Once levels normalize, Kirkland 2000 IU is fine for maintenance.
1 of 1 shown, 1 dose at what the trials used
This read comes from the product's own supplement facts panel. Every dose was cross-referenced with published clinical trials to see whether it matches what the studies actually used.
