Vitamin K - Deficiency Symptoms
 

Primary deficiency of vitamin K in adults has not yet been clearly demonstrated, either by observation of malnourished patients or by dietetic experiments on volunteers. Hence it may be assumed that even the worst diets contain enough of this vitamin to meet normal human needs. A deficiency state would more likely be caused by a failure to absorb or utilise the vitamin. Low vitamin K intake, plus antibiotic therapy, which reduces its production by bacteria, may result in lowered levels of vitamin K in the body.

A deficiency of vitamin K which results in the blood taking longer to clot, may cause severe haemorrhages anywhere in the body. Nosebleeds and bleeding can prove to be life threatening.