Vitamin K for “coagulation” is essential for blood clotting. There are three forms: vitamin K1, K2 and K3 (medicine). Who is it for? What are the risks if we miss? In what foods can it be found? What are its other health benefits? Everything you need to know about vitamin K.
Vitamin K is essential for the production of proteins regulate blood clotting. The shortcomings are common, especially a very small child. Unlike other vitamins such as vitamin D, vitamin K can be present produced by the body. Where will we find it? In what foods? How much should I consume per day? Lighting.
Definition: What is Vitamin K?
Vitamin K is a vitamin soluble in fat (soluble in fat), like vitamins A, D and E. It comes in two main forms: vitamin K1 (phytomenadione, phylloquinone or phytonadione) and vitamin K2 (menaquinones). She is provided with both food, especially green vegetablesand Here it is intestinal flora (Intestinal bacteria allow the synthesis of vitamin K). Vitamin K1 interferes directly with the clotting process and K2 acts faster calcification soft tissues. There are a third form (vitamin K3), synthetic, found in medications, supplements, or multivitamin supplements.
Why is it called “vitamin K”?
Its name comes from the German languageCoagulation”Because it is involved in the mechanism of blood clotting.
In what foods can you find vitamin K?
If the body produces vitamin K, it is not enough to meet daily needs. Therefore, it is worth giving priority to foods rich in vitamin K. Preference is given to: dark green vegetables such as spinach, broccoli, cabbage and asparagus, as well as vegetable oils (olive, canola, soybean, etc.). We also find some fermented milk products (ripened cheeses, yoghurts, milk, kefir), fish offal and oil.
List of foods rich in vitamin K1 (content taken from the ANSES Cliqual table):
- Cabbage leaves (817 100g 100 g)
- Cress (541 100g 100 g)
- Spinach (482 100g 100 g)
- Chard (327 100g 100 g)
- Broccoli (141 100g 100 g)
- Rapeseed oil (71 100g 100 g)
- Olive oil (60 100g 100 g)
List of foods rich in vitamin K2 (content taken from the ANSES Cliqual table):
- Goose liver (369 100g 100 g)
- Chicken thighs (34.3 100g 100 g)
- Edamas (34.3 g per 100 g)
Which foods are low in vitamin K?
The minimum amount of vitamin K (less than 1 µg 100 g) is cow’s milk, yoghurts, corn, white bread, potatoes, peanuts, mushrooms, turnips, cucumbers ….
Fruits with the lowest vitamin K content are: melon, watermelon, orange, pomel, mango.
What is the daily need for vitamin K for men and women?
- Man : 1 μg / kg body weight per day
- Women : 1 μg / kg body weight per day
What are the benefits of vitamin K?
Vitamin K is necessary for the blood clotting process allowing the production of certain factors in this coagulation in the liver. She is also involved bone metabolism. “It is very important to have enough vitamin K at any age to stimulate bone growth and regeneration.assures Professor Lucas Christiaens, head of the Department of Cardiology at the University of Poitiers Hospital. “She also plays a important role in bone mineralization: it is also proposed for the prevention of osteoporosis.
Many anticoagulants block the activity of vitamin K.
What is its role in coagulation?
Vitamin K is primarily known for its key role in blood clotting (and more specifically vitamin K1). Ji protects against bleeding activating many coagulation factors. It is therefore necessary in the event of a cut or scratch stop bleeding.
Vitamin K for babies
Vitamin K supplementation is given systemically to newborns in the maternity ward. This can compensate for the baby’s non-existent vitamin K stores. Such use reduces the risk of bleeding in the first months of life.
Vitamin K and breastfeeding
To avoid the risk of bleeding (which, fortunately, remains rare), doctors want to systematically supplement babies with vitamin K from birth and throughout breastfeeding.
What is the risk in case of deficiency?
“Sufficient daily intake varies by age and sex: 30 to 75 micrograms for 1 to 18 years, 90 mg for adult women and 120 micrograms for adult men. This vitamin K is stored in the liver for several months.“Explains our doctor Vitamin K deficiency is rare in adults. Nevertheless, they can occur with chronic bowel disease, cirrhosis of the liver, or with certain medications. They will then cause a blood clotting disorder (hypoprothrombinemia). It means bruisesof nosebleeds of severe menstruation and an bone fragility.
Vitamin K and drugs
Many treatments anticoagulants (vitamin K antagonists) to do blocks the activity of vitamin K.
“Patients are advised to take vitamin K antagonists to limit the intake of vitamin K-rich foods and to avoid the use of food supplements containing them. “ – assures our interlocutor. Decrease Vitamin K levels should also be reported during long-term antibiotic treatment. In fact, antibiotics reduce the production of vitamin K by partially destroying the intestinal flora. “In this case, it may be interesting to consider an addition” – concludes the professor.
Thanks to Professor Luc Christiaens, Head of the Department of Cardiology, University of Poitiers Hospital. Statements collected in 2020