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Vitamin K - the Clotting Vitamin - Phytomenadione

Vitamin K for blood clotting …
Vitamin K has an influence on production of the physiological coagulation factors and thus on blood clotting. Blood clotting is important in order to stop bleeds.
About half of our daily vitamin K demand is produced by our bowel bacteria. The rest must be supplied with the diet. In neonates, who do not have any bowel bacteria in the first weeks of life yet, vitamin K supplementation is therefore recommended in order to prevent bleeds.
Vitamin K for the bones …
The role of vitamin K in bone building is particularly important. Vitamin K is needed to fix calcium in the bone metabolism. That is why vegetarians often have a better bone structure! It has been shown that women in the menopause who have an adequate supply of vitamin K eliminate less calcium.
Vitamin K deficiency …
is characterised by bleeding tendency and a longer blood clotting time. Strong diarrhoea can also be an indication for vitamin K deficiency. Vitamin K deficiencies are possible as a result of antibiotic use, which damages the bowel flora considerably. And vitamin K deficiency can also result from bowel disorders or from an inadequate supply. Probiotic foods support the growth of bacteria that are beneficial for the bowel, which in turn enable better vitamin K production in the bowel.
Overdose …
Beware of an overdose of vitamin K, too – too much vitamin K can be deposited in the body and can break up the red blood cells. Too much vitamin K can also damage the liver, which can cause jaundice in infants and children.
Applications for vitamin K supplementation …
include bowel disorders, cancer or osteoporosis. The recommended supply is 30 – 120 mcg per day. Latent vitamin K deficiencies can be provoked in patients who have to take anticoagulants for a long time. Low vitamin K levels have been measured in pregnant women suffering from dizziness and vomiting. An improvement was achieved within 72 hours by taking 5 mcg vitamin K plus 25 mg vitamin C. And women who lose a lot of blood during their menstruation also benefit from sufficient vitamin K with less heavy bleeds.
Literature: Gesund durch ausreichend Vitamine, Mineralstoffe & Spurenelemente, Nährstoff-Akademie Salzburg; ISBN: 3-902472-00-6


RDA* 75 mcg
Therapeutic dose 30 - 100 mcg
*RDA = recommended daily allowance  

Vitamin K - sources

  mg/100g daily supply: 70 mcg is equivalent to
Sauerkraut 1540.00 5 mg
Chicken liver 590.00 12 g = 1 bite
Sunflower oil 500.00 14 g = 1 1/2 tablespoons
Spinach 340.00 20 g = 1 large tablespoon
Soybean 190.00 37 g = 1/4 portion
Egg yolk 45.00 155 g = 8 yolks
Carrots 39.80 176 g = 4 1/2 pieces