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Bone health; Vascular health; Calcium balance; Antioxidant support
Adults who eat limited amounts of leafy greens or fermented foods and those seeking straightforward daily support for bone and vascular wellness.
Take 1 softgel daily with food; taking fat-containing meals may support absorption of the fat-soluble vitamin K forms.
Gluten Free; Non-GMO LE Certified
Vitamin K1 acts as a cofactor for enzymes that activate vitamin K–dependent proteins involved in calcium balance and normal blood clotting.
Caution: Consult a healthcare professional if you use blood-thinning medications because vitamin K can affect clotting regulation.
MK-4 activates matrix Gla protein and osteocalcin, which help direct calcium to bones and away from soft tissues.
Caution: Those on anticoagulants should seek medical guidance since vitamin K forms can interact with clotting pathways.
MK-7 provides a longer-lasting form of vitamin K2 that activates calcium-regulating proteins for bone and vascular support.
Caution: If you take blood-thinning drugs, discuss use with a healthcare professional due to effects on clotting factors.
Vitamin C functions as an antioxidant that helps protect lipids and cells from oxidative stress.
Caution: May cause mild digestive discomfort in sensitive individuals when taken on an empty stomach.
K1 and the two forms of K2 work on vitamin K–dependent proteins that manage calcium placement, supporting both bone mineralization and healthy vascular calcification balance. MK-7 offers a longer half-life for sustained activation, while MK-4 provides a complementary K2 source; vitamin C adds antioxidant support to help protect delicate lipids in the softgel.
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 physician if you are being treated for a medical condition or if you are pregnant or lactating.
Who should be cautious: People on anticoagulants such as warfarin should use caution due to vitamin K content. Individuals with bleeding disorders or scheduled surgeries should discuss use with a healthcare provider. Those with liver concerns or on multiple medications may wish to review this with a clinician. If combining with anticoagulants, consult a healthcare provider before use.
Storage: Store tightly closed in a cool, dry place.
Softgels are described as smooth and simple to take daily.
Users like the mix of K1, MK-4, and MK-7 and feel it supports overall wellness.
A few reviewers disliked some added components in the formula.
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) softgel daily with food, or as recommended by a healthcare practitioner.
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 ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.
| Supplement facts | ||
| Serving Size: 1 Softgel | ||
| Amount Per Serving | % Daily Value | |
| 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 | ** |
| **%Daily Value not established. | ||
Extra virgin olive oil, gelatin, glycerin, beeswax, purified water, carob color, maltodextrin, microcrystalline cellulose.
