Why you need Vitamin K – and its importance for your gut flora

The Vitamins C, B and D are probably best known to most of us and we often have have taken these vitamins as dietary supplements at some point, or still are. However, there are lesser known vitamins that are just as important for your general health. One of these is Vitamin K.

Vitamins are essential nutrients

Vitamins are classified as so-called essential nutrients, which means that the body can’t produce enough of these on its own and they’re vital for your general health. In addition to vitamins, the fatty acids omega-3 and omega-6, nine amino acids, as well as certain minerals and trace elements such as calcium, magnesium and iodine are also classified as essential nutrients.

When your body can’t produce (enough of) these vitamins, they need to be ingested externally. This can be via diet, supplements, or, in the case of vitamin D, via the sun. 

Why do you need vitamin K?

Vitamin K consists of the fat-soluble vitamins K1 (phylloquinone) and K2 (menaquinone). Together, these vitamins have an effect on several important functions in your body that’ll keep you strong and healthy. For example, the following functions depend on healthy levels of vitamin K:

  • Healing wounds – The proteins needed for the blood to coagulate are dependent on vitamin K. It may therefore take longer for the blood to coagulate and for wounds to heal in people who are deficient in vitamin K.
  • A strong skeleton – Vitamin K supports bone mineralisation and calcium balance in the body, which contributes to maintaining a normal bone structure.
  • Cardiovascular health – Vitamin K helps keep the heart and blood vessels strong and flexible by protecting against calcification.
  • Vitamin D uptake – Vitamin K is required for the uptake of vitamin D, as K2 helps introduce vitamin D into the skeleton.
  • Cognitive effect – Research also suggests that vitamin K may be linked to brain function and that vitamin K deficiency could increase the risk of dementia.

Best natural sources of vitamin K

  • K1 – green leafy vegetables – Vitamin K1 is found in green vegetables such as spinach, chard, broccoli, kale, Brussels sprouts, arugula and herbs such as oregano, parsley, coriander and basil. Vegetables such as squash, asparagus, sugar peas, fresh soybeans, cucumbers and avocados also contain K1.
  • K2 – produced by the gut bacteria – Vitamin K2 is mainly found in animal foods such as egg yolks, certain dairy products and in offal, but can also be found in fermented foods and algae.

However, your body can convert K1 to K2 via the gut flora, so a varied diet rich in green vegetables usually provides the body with enough of both vitamin K1 and K2. In addition to containing K1, high-fibre vegetables also provide food for the gut bacteria, which helps them thrive and produce more K2 and other useful vitamins such as the B vitamins biotin, folate and riboflavin.

How do you get enough vitamin K?

Vitamin K deficiency is relatively uncommon, but can occur when nutrient uptake is poor, or in connection with antibiotic treatment. The recommended daily dose of vitamin K1, as established by the European Food Safety Authority, is 70 micrograms per day for adults. However, the body’s capacity to store vitamin K is low and it is therefore important to consume a varied diet with lots of vegetables to meet the body’s requirement for vitamin K. Foods rich in K vitamins should also be combined with a source of fat to ensure that these vitamins are properly absorbed.

Super Synbiotics: The Perfect Addition to Your Daily Routine for Optimal Gut Health

Looking to boost your energy and get rid of uncomfortable bloating? Taking care of your gut health might just be the solution you've been looking for. A balanced and strong gut flora is crucial for optimal health, and to achieve that, you need to nourish it with a daily dose of pre- and probiotics. While a healthy diet is a great start, sometimes you need an extra boost to make sure you're getting enough of the good stuff. That's where Synbiotic15 comes in.

By taking Synbiotic15, you'll experience a host of benefits, including a stronger immune system, better digestion, reduced inflammation, healthier skin, and relief from common stomach issues. This all-natural supplement is made from a unique blend of four patented lactic acid bacteria and four grams of prebiotic fibres that serve as nourishment for the good bacteria in your gut. And with over 20 years of research behind it, you can trust that it's a proven solution to help you take control of your gut health.

Simply mix Synbiotic15 into your morning routine by adding it to water, blending it into a smoothie, sprinkling it over your yogurt, or taking it on its own. It's an easy and effective way to give your gut the boost it needs. Don't wait any longer to take charge of your health – buy Synbiotic15 now and level up your health and wellbeing.


  • The National Food Administration
  • Weber, P. (2001). Vitamin K and bone health. Nutrition, 17 (10), 880-887.
  • DiNicolantonio, J. J., Bhutani, J., & O’Keefe, J. H. (2015). The health benefits of vitamin K. Open Heart, 2 (1)
  • Presse, N., Belleville, S., Gaudreau, P., Greenwood, C. E., Kergoat, M., Morais, J. A., … Ferland, G. (2013). Vitamin K status and cognitive function in healthy older adults. Neurobiology of Aging, 34(12)

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