This capsule delivers **Vitamin D3** at 5,000 IU as cholecalciferol — the same form your skin makes from sunlight and the most effective form for raising blood levels. At 5,000 IU you're at the top of the clinically supported range (1,000–5,000 IU), well above the conservative 600 IU RDA. D3 is essential for calcium absorption, immune regulation, and bone maintenance. It also includes **Vitamin K2** as MK-7, the long-acting form that stays active in your body for roughly 96 hours, directing calcium into your bones and away from your arteries.

The D3 and K2 pairing is a well-established synergy: D3 pulls more calcium from your gut, and K2 ensures that calcium ends up in your skeleton. However, the K2 dose here is 50 mcg — below the 100–200 mcg range used in most studies. You're getting high-quality MK-7, but at roughly half the researched dose.

Because D3 is fat-soluble, taking this with a meal that includes some fat will improve your absorption. The 5,000 IU dose exceeds the official upper limit (4,000 IU), though it's common for people with low levels. If you haven't had your vitamin D blood level tested, checking before committing to this dose is worth considering.