Newborns are especially prone to vitamin K deficiency
Vitamin K deficiency can cause massive hemorrhaging in infants due to impaired blood clotting. This deficiency can occur because newborns have lower levels of vitamin K, which is needed for proper blood coagulation. Infants are typically given a vitamin K injection shortly after birth to prevent this deficiency.
Vitamin K deficiency in adults is rare
The prognosis for correcting vitamin K deficiency, and associated blood-clotting problems, is excellent.
Vitamin K is necessary for the production of Clotting Factors II, VII, IX and X. So a vitamin K deficiency could lead to a bleeding disorder. Additionally vitamin K is necessary for the production of the anticoagulant protein C and protein S. Inhibition of Vitamin K function is also associated with clotting disorders though for this to occur there has to be a deficiency in either proteins C or S.
Scurvy is a vitamin C deficiency.
Vitamin K deficiency in newborn infants is treated and prevented with a single injection of phylloquinone (5 mg).
Vitamin A deficiency occurs with the chronic consumption of diets that are deficient in both vitamin A and beta-carotene.
Deficiency of Vitamin K
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k
Vitamin D deficiency, as well as rickets and osteomalacia, tends to occur in persons who do not get enough sunlight
Vitamin B6 deficiency occurs rarely. When it does, it is usually associated with poor absorption of nutrients in the gastrointestinal tract