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Bone health; Calcium balance; Cardiovascular wellness
Adults with limited dietary intake of vitamin K–rich foods or those seeking bone and calcium balance support.
Adults take 1 softgel once daily, preferably with a meal that contains fat to support absorption of fat-soluble vitamins.
Non-GMO; Gluten Free; No wheat, gluten, soybeans, dairy, egg, fish/shellfish, peanuts/tree nuts, or sesame.
MK-4 activates vitamin K–dependent proteins like osteocalcin and matrix Gla protein, which may help direct calcium into bones and away from soft tissues.
Caution: If you use anticoagulant medications like warfarin, consult a professional because vitamin K can affect INR stability.
Vitamin K1 supports carboxylation of vitamin K–dependent proteins involved in calcium handling and blood clotting.
Caution: Those on anticoagulant therapy should seek guidance since vitamin K intake can influence medication effect.
MK-7 has a longer half-life in the body and supports activation of bone and vascular proteins that regulate calcium placement.
Caution: Consult a professional if you use blood-thinning medications, as vitamin K can interact with them.
Vitamin D3 supports calcium absorption in the gut and signals bone-forming cells to produce osteocalcin.
Caution: Take with a meal containing fat to aid absorption; avoid combining with high-dose vitamin D from other products unless advised.
MK-4, MK-7, and K1 activate vitamin K–dependent proteins that help manage where calcium goes in the body. Vitamin D3 enhances calcium absorption and promotes osteocalcin production, providing the proteins that vitamin K then activates for bone and vascular support.
Label Warning: Consult a healthcare professional before use if pregnant, nursing, under 18, taking medications (especially anticoagulants such as warfarin), or if you have a medical condition. Stop use if adverse reactions occur.
Who should be cautious: People on anticoagulants or with bleeding concerns may need extra caution due to vitamin K content. Individuals with disorders affecting fat absorption or on multiple supplements containing vitamin D may also consider checking total intake. If you take medications that may interact with vitamin K, consult a healthcare provider before use.
Storage: Store in a cool, dry place.
Softgel capsules are small and go down smoothly with no aftertaste.
Many users feel positive changes in bone comfort and cardiovascular wellness after daily use.
A few users question the origin and quality of some ingredients.
This product is guaranteed authentic and backed by our easy returns & refunds policy. Details
Calcium and Vitamin K may support bone strength, with Vitamin K helping to regulate calcium in the body.
AI generated. Not medical advice.
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Jarrow Formulas® K-Right® is a combination of three forms of Vitamin K: MK-7, MK-4 and K₁, plus vitamin D₃ to support bone and cardiovascular health. Vitamin K functions in the carboxylation of osteocalcin, which binds calcium in bones. Vitamin D₃ functions in the production of osteocalcin.
Jarrow Formulas® MK-7 is a product of natural fermentation using Bacillus subtilis subsp. natto.
Adults take 1 softgel once a day or as directed by your qualified healthcare professional.
Olive oil, softgel (bovine gelatin, water, glycerin, organic caramel [color]).
No wheat, gluten, soybeans, dairy, egg, fish/shellfish, peanuts/tree nuts or sesame.
Consult a healthcare professional before using this product if you are pregnant, nursing, under the age of 18, are taking medication (especially anticoagulants [e.g. Warfarin/Coumadin]) or have a medical condition; if adverse reactions occur, discontinue use.
Keep out of the reach of children. Store in a cool, dry place.
Do not use if safety seal is damaged or missing.
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: | %DV | |
| Vitamin D₃ (as Cholecalciferol) | 50 mcg (2,000 IU) | 250% |
| Vitamin K₁ (as Phylloquinone) | 500 mcg | 417% |
| Vitamin K₂ (as MK-4 [Menaquinone-4]) | 1,500 mcg | † |
| Vitamin K₂ (as MK-7 [Menaquinone-7]) | 180 mcg | † |
| †Daily Value (DV) not established. | ||
