Nutrition & Diet

Vitamin K Requirement

Vitamin K is important for blood clotting and healthy bones.

Your Result

Based on your genetics, your genetic predisposition for Vitamin K Requirement is


What does it mean?

Likely to have increased risk of vitamin K deficiency. Your genotype shows that you have increased risk for vitamin K deficiency. Consume more vitamin K rich food to obtain sufficient vitamin K.

Suggested Lifestyle Changes

Dietary Recommendations


Boost your vitamin K1 levels by including more green leafy vegetables such as spinach, kale, broccoli, lettuce, Swiss chard and parsley in your daily diet. These are a good source of vitamin K1, with one cup of kale providing over 1,000 micrograms of vitamin K, approximately ten times the recommended minimum daily amount. Absorption of vitamin K1 is greater when consumed with a little bit of fat, such as vegetable oil (e.g. extra virgin olive oil, canola oil).


Vitamin K rich fruits include kiwifruit, blueberries, prunes, figs, and grapes. Fermented dairy products, such as yogurt and cheese, and fermented soy (miso paste and natto), provide vitamin K2, which is especially helpful in increasing bone density and reducing the risk of fractures.


Animal sources of vitamin K include chicken, eggs, beef, lamb, shrimp, sardines, tuna, and salmon.


Vitamin K is fairly stable as it is not destroyed by usual cooking methods or lost in cooking water.

Supplement Recommendations


Supplemental vitamin K is available as phylloquinone (K1) and menaquinones (Vitamin K2, often listed as MK-4 or MK-7). Vitamin K2 has better bioavailability and is more biologically active as it remains in the body longer compared to vitamin K1, which is cleared from the blood within eight hours.


Vitamin K2 is linked to cardiovascular health, as it directs calcium to the bones, and prevents it from being deposited elsewhere, for example arteries and organs, where it can cause harm.


Caution: People taking prescription anticoagulants (e.g. warfarin) need to monitor their dietary intake of vitamin K containing foods closely, and should not take supplemental vitamin K without consulting with health care provider.

What Is Vitamin K Requirement
and How Can It Affect You

What is Vitamin K Requirement

Vitamin K (including vitamin K1, phytonadione, and K2, menaquinone), is a group of fat-soluble vitamins that is essential for promoting healthy blood clotting and healthy bones. Low vitamin K intake increases the risk of excessive bleeding, mineralization of blood vessels, and risk of osteoporosis and fractures. Genetic variations contribute to vitamin K imbalance.

There is no fixed RDA, however, 120 micrograms and 90 micrograms for men and women respectively is considered adequate.

Do You Have Vitamin K Deficiency?

The main symptom of vitamin K deficiency is excessive bleeding. Do you have any of the following signs and symptoms? See your doctor if you begin experiencing any of the following symptoms:

Factors Affecting Vitamin K Deficiency

You may be at risk of vitamin K deficiency if you have conditions that may prevent your body from absorbing fats properly, for example:

Food Sources Containing Vitamin K

Vitamin k

Understanding Your Results

How Is Your Genetic Risk Calculated?

Your genetic risk assessment is


Genes tested

This result is based on the SNPs (single nucleotide polymorphism) that are associated with Vitamin K Requirement.

GenesYour GenotypeWhat It Means
GGCXAGProduces a protein that is less active, resulting in lower level of active vitamin K.


This report does not diagnose any health conditions or provide medical advice. This should not be used as a diagnostic tool.

This result is limited to existing scientific research.

Consult with a healthcare professional before making any major lifestyle changes or if you have any other concerns about your results.

If you think you have the symptoms, consult with a healthcare professional.