This product pairs **Vitamin D3** (5,000 IU) with **Vitamin K2** as MK-7 (100 mcg) — two fat-soluble vitamins that work together. D3 increases your calcium absorption, while K2 directs that calcium into your bones and teeth instead of letting it accumulate in your arteries. Both are dosed within their well-studied clinical ranges.
The forms are premium across the board. D3 is cholecalciferol sourced from lichen (fully plant-based), the same form your skin produces from sunlight and significantly more effective than D2. K2 is MK-7, the long-acting form that stays active in your body for roughly 96 hours. The softgel contains coconut MCT oil and olive oil as fat-based carriers that improve absorption of both vitamins.
At 5,000 IU, the D3 dose exceeds the official upper limit (4,000 IU), though it's widely used in clinical research for people with low levels. If you haven't had your vitamin D blood level tested, checking before committing to this dose is a practical step. The 100 mcg K2 is right in the effective range for bone and cardiovascular support.
BioStacks
Sports Research
D3 + K2, Plant-Based, 125 mcg/100 mcg, 160 Veggie Softgels
1 Softgel · 160 servings · $0.22/serving
Best for
Ingredients (2)
Vitamin D
100%Dose
5000 IU
Target
1000–5000 IU
Form
Premium
Vitamin K
100%Dose
100 mcg
Target
90–200 mcg
Form
Premium
Other Ingredients (3)
Medium Chain Triglyceride OilCarrier
Fractionated oils rich in C8/C10 triglycerides used as neutral carrier or anti-sticking agent
Extra Virgin Olive OilCarrier
Cold-pressed olive oil used as a carrier and filler in softgel capsules for fat-soluble nutrients
Capsule ShellCapsule
Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.