Vitamin D3 at 2000 IU (50mcg) as cholecalciferol. This is 50% of the optimal 4000 IU but well above the minimum effective 1000 IU. For most people, 2000 IU is a solid maintenance dose. Softgel with oil enhances absorption of this fat-soluble vitamin. USP verified.
The set is generated, never written by the brand.
Kirkland Signature Vitamin D3 2000 IU: the formulation holds up. Lead: Vitamin D3 at 50 mcg. Vitamin D3 at 2000 IU (50mcg) as cholecalciferol. Clinical dose on the primary, and the panel holds together.
600 softgels for under $10. Nearly 2 years of vitamin D3 at the ideal maintenance dose. USP Verified. Costs less than a Costco hot dog combo. The best supplement value in America. Just add K2 separately.
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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.

