Vitamin K is a family of structurally similar, fat-soluble vitamers found in foods and marketed as dietary supplements. The human body requires vitamin K...

Vitamin K deficiency results from insufficient dietary vitamin K1 or vitamin K2 or both. Symptoms include bruising, petechiae, and haematoma. Vitamin...

Vitamin K antagonists (VKA) are a group of substances that reduce blood clotting by reducing the action of vitamin K. The term "vitamin K antagonist"...

folates) Vitamin B12 (cobalamins) Vitamin C (ascorbic acid and ascorbates) Vitamin D (calciferols) Vitamin E (tocopherols and tocotrienols) Vitamin K (phylloquinones...

Vitamin K2 or menaquinone (MK) (/ˌmɛnəˈkwɪnoʊn/) is one of three types of vitamin K, the other two being vitamin K1 (phylloquinone) and K3 (menadione)...

Vitamin K deficiency bleeding (VKDB) of the newborn, previously known as haemorrhagic disease of the newborn, is a rare form of bleeding disorder that...

Vitamin K reactions are adverse side effects that may occur after injection with vitamin K. The liver utilizes vitamin K to produce coagulation factors...

Vitamin D deficiency or hypovitaminosis D is a vitamin D level that is below normal. It most commonly occurs in people when they have inadequate exposure...

year and a life-threatening bleeding rate of 1-3% per year. Newer non-vitamin K antagonist oral anticoagulants appear to have fewer life-threatening bleeding...

Vitamin K epoxide reductase (VKOR) is an enzyme (EC 1.17.4.4) that reduces vitamin K after it has been oxidised in the carboxylation of glutamic acid residues...