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Arterial health, bone health, calcium balance, antioxidant support
Adults who eat few leafy greens or fermented foods and those seeking daily support for bone and arterial wellness.
Take 1 softgel once daily with food; taking with a meal supports absorption of fat-soluble vitamin K and may improve tolerance.
Gluten-free; Non-GMO LE-certified.
Vitamin K1 acts as a cofactor for carboxylase enzymes that activate vitamin K–dependent proteins involved in calcium handling and normal blood clotting.
Caution: If you use blood-thinning medicines such as warfarin, consult a healthcare professional because vitamin K can affect INR control.
MK-4 helps carboxylate proteins like osteocalcin and matrix Gla protein, which guide calcium to bones and away from soft tissues.
Caution: People on anticoagulant therapy should seek advice before use due to potential effects on clotting parameters.
MK-7 provides a longer-acting form of vitamin K2 that supports activation of calcium-regulating proteins in the body.
Caution: May interact with vitamin K antagonist medicines; consult a professional if using such therapies.
Vitamin C functions as an antioxidant that helps protect lipids and cells from oxidative stress.
Caution: May cause mild gastrointestinal discomfort in some people when taken on an empty stomach.
K1 and the two K2 forms activate vitamin K–dependent proteins through carboxylation, supporting efficient calcium utilisation. MK-7 is longer acting, while MK-4 acts more quickly, offering complementary kinetics alongside K1 for broad vitamin K activity.
Label Warning: If you are taking a vitamin K antagonist such as warfarin, consult a healthcare practitioner before use. Do not exceed the recommended dose. Consult a doctor if you are being treated for a medical condition or if you are pregnant or breastfeeding.
Who should be cautious: People using anticoagulants such as warfarin. Individuals with bleeding disorders or scheduled for surgery may also need advice from a healthcare professional. Those with vitamin K sensitivities or on multiple medications should discuss use with a healthcare provider. If combining with anticoagulants, consult a healthcare provider before use.
Storage: Store tightly closed in a cool, dry place. Keep out of the reach of children. Do not purchase if the outer seal is damaged.
This product is guaranteed authentic and backed by our easy returns and refunds policy. Details
Magnesium helps activate Vitamin D, which works with Vitamin K. Together, these nutrients may support balanced calcium metabolism, bone strength, and cardiovascular function.
AI generated. Not medical advice.
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What Is Super K?
Super K provides three different kinds of vitamin K that support arterial health: K1 and two types of K2, MK-7 and MK-4. Although leafy green vegetables contain vitamin K1 and vitamin K2 is found in some types of dairy products, it’s difficult to get enough vitamin K through diet alone.
Support your heart health and arterial function with a vitamin that’s hard to get enough of from diet alone.
Read the entire label and follow the directions carefully.
Take one (1) capsule daily with food, or as recommended by a healthcare practitioner.
Extra virgin olive oil, gelatine, glycerine, beeswax, purified water, carob colour, maltodextrin, microcrystalline cellulose
Store tightly closed in a cool, dry place.
If you are taking a vitamin K antagonist (e.g. warfarin), consult your healthcare practitioner before taking this product.
While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally be despatched with alternative packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and do not rely solely on the information provided by iHerb. This website has been machine translated as a courtesy to customers. iHerb does not represent or warrant that the translations are complete or error-free and iHerb is not responsible for any translation errors or omissions.
| Supplement information | ||
| Serving size:one softgel | ||
| Amount per serving | % Reference Intake | |
| Vitamin C (as ascorbyl palmitate) | 10 mg | 11% |
| Vitamin K (as phytonadione) | 2,000 mcg | 1,667% |
| Vitamin K2 (as menaquinone-4) | 1,000 mcg | ** |
| Vitamin K2 (as MenaQ7® trans menaquinone-7) | 180 mcg | ** |
| **%Reference intake not established. | ||
