Evidence supporting the use of: Vitamin K (unspecified)
For the health condition: Bruises (prevention)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Vitamin K plays an essential role in blood clotting by contributing to the synthesis of clotting factors in the liver. Deficiency in vitamin K can lead to increased bleeding tendency, easy bruising, and, in severe cases, hemorrhagic disease. The use of vitamin K to prevent or treat bruising is scientifically grounded in cases where bruising is due to vitamin K deficiency, such as in newborns (who receive prophylactic vitamin K) or in adults with malabsorption syndromes or those taking certain anticoagulants (e.g., warfarin overdose). However, for the general population with normal vitamin K levels, there is limited scientific evidence supporting the routine use of vitamin K (oral or topical) specifically for bruise prevention. A few small clinical studies have explored topical vitamin K for accelerating the resolution of bruises, especially after cosmetic procedures, but results have been mixed and generally not robust. In summary, vitamin K is scientifically validated for prevention and treatment of bruising only in the context of proven or suspected deficiency or anticoagulant overdose. Routine supplementation or topical application for bruise prevention in healthy individuals is not strongly supported by current scientific evidence.

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