Vitamins K1 (phytonadione) and K2 (menaquinone) are commonly available as supplements. Vitamin K is an essential vitamin needed by the body for blood clotting, bone building, and other important processes. It’s found in leafy green vegetables, broccoli, and Brussels sprouts.
What is vitamin K1 deficiency?
The main symptom of vitamin K deficiency is bleeding (hemorrhage)—into the skin (causing bruises), from the nose, from a wound, in the stomach, or in the intestine. Sometimes bleeding in the stomach causes vomiting with blood. Blood may be seen in the urine or stool, or stools may be tarry black.
What is vitamin K1 and K2 good for?
Why You Need Vitamin K2. Both vitamins K1 and K2 ensure healthy blood clotting, preventing excessive bleeding and bruising when blood vessels get injured.
Can vitamin K1 cause blood clots?
A sudden change in the amount of vitamin K you get can cause dangerous bleeding (if you consume less) or blood clots (if you consume more).
What is vitamin K1 good for? – Related Questions
What are the side effects of vitamin K1?
Temporary flushing, taste changes, dizziness, rapid heartbeat, sweating, shortness of breath, or bluish lips/skin/nails may also rarely occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
What happens if you take too much vitamin K1?
Vitamin K1 (phylloquinone) is not toxic when consumed orally, even in large amounts. However, menadione (a synthetic, water-soluble vitamin K precursor) can cause toxicity (infants have developed hemolytic anemia, hyperbilirubinemia, jaundice, and kernicterus) and should not be used to treat vitamin K deficiency.
Does vitamin K thin your blood or clot your blood?
According to the National Library of Medicine (NLM), the body uses vitamin K to help clot blood.
Does vitamin K thicken or thin your blood?
Vitamin K helps your blood to clot (thicken to stop bleeding). Warfarin works by making it harder for your body to use vitamin K to clot blood. Changes in the amount of vitamin K that you normally eat can affect how warfarin works.
Does vitamin K make blood clots worse?
Too Much Vitamin K
As long as someone isn’t taking blood thinner medication, eating more of the vitamin doesn’t cause too much blood clotting or other dangerous conditions (2).
Can vitamin K1 cause a stroke?
These findings indicate that genetic predisposition to higher circulating vitamin K1 levels is associated with an increased risk of large artery atherosclerotic stroke.
Who should avoid taking vitamin K?
People with a rare metabolic condition called Glucose-6-phosphate dehydrogenase (G6PD) deficiency should avoid vitamin K. People who take warfarin (Coumadin) should not take vitamin K (see “Possible Interactions”). People who are receiving dialysis for kidney diseases can have harmful effects from too much vitamin K.
Is vitamin K1 good for heart?
People with the highest vitamin K1 intakes were 21% less likely to be hospitalized with cardiovascular disease caused by clogged arteries compared with people who had the lowest intakes.
How long does vitamin K1 take to work?
Vitamin K (phytonadione) starts working in six to 10 hours and reaches maximum effect in 24 to 48 hours (one to two days).
Which is better to take vitamin K1 or K2?
Vitamin K and Heart Health
Several observational studies have suggested that vitamin K2 is better than K1 at reducing these calcium deposits and lowering your risk of heart disease ( 18 , 19 , 20 ).
Do you need a prescription for vitamin K1?
Vitamin K1 (phytonadione, phytomenadione, or phylloquinone) is an over-the-counter and prescription nutrient that addresses vitamin K deficiency or conditions that interfere with vitamin K activity.
