Vitamin D3 + K2
The score explained
evidence, testing and value, weighed before price
Why 7.5 of 10: Provisional: strong D3 core, K2 add-on still emerging.
- Combines D3 with MK-7 form of K2
- Third-party tested
- Coconut-oil base for absorption
- K2's bone/heart benefit on top of D3 is still emerging
- Costs more than plain D3
what the evidence says
The D3 half carries the strong conditional evidence described across this category. The K2 half is genuinely promising but earlier-stage: K2 clearly participates in directing calcium into bone, and some human studies suggest benefits for arterial calcification and bone density, but the trials are smaller and less consistent than the marketing implies. Reasonable pairing; do not pay a large premium for certainty that is not there yet.
Plain-language assessment of the human evidence. No cherry-picked citations.
reviews
Most reviewers take it for immunity and report it doing its job quietly. Ratings cluster around 4.7 stars across retailer sites, with few complaints beyond shipping.
Stack this with
TestingMinmed Vitamin D TestBoth target immunity. Minmed Vitamin D Test gives you a baseline for immunity before you spend more on fixes.
SupplementsThorne Vitamin D3/K2Both target immunity. Thorne Vitamin D3/K2 covers the nutrient side of immunity, a cheap daily base under everything else you do.
FoodAMGD Dietitian-Designed Meal PlanBoth target heart. AMGD Dietitian-Designed Meal Plan handles the food side of heart without you having to think about it.