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O3-D3-K2 Vegan - Why a combination preparation makes sense

Omega-3 fatty acids, vitamin D and vitamin K are essential substances for the human body. Therefore, we have developed a O3-D3-K2 Vegan combination supplement to provide you with all three substances. Read our blog post today to find out why such a combination supplement makes sense and what functions omega-3 fatty acids, vitamin D and K have in the body.

Table of contents:

  1. What role do vitamins D and K and omega-3 fatty acids play in our body?
  2. Omega-3 fatty acids
  3. Vitamin D
  4. Vitamin K
  5. O3-D3-K2 Vegan: Why is a combination useful?
  6. Effective combination supplement - what's inside

What role do vitamins D and K and omega-3 fatty acids play in our body?

Omega-3 fatty acids

Omega-3 fatty acids are among the polyunsaturated fatty acids, including eicosapentaenoic acid (EPA), α-linolenic acid (ALA) and docosahexaenoic acid (DHA). They play an important role in the production of hormones, the prevention of inflammation and the formation of the body's own defense cells. They also contribute to normal heart function and the maintenance of normal brain function and vision. An insufficient intake of these fatty acids can therefore lead to physical and mental impairment.

As more omega-6 fatty acids are often consumed, the ratio of omega-3 and omega-6 fatty acids is disturbed. In contrast to omega-3 fatty acids, omega-6 fatty acids are proinflammatory, which means they promote inflammation, such as arachidonic acid. The ratio of the two fatty acids is important as they are converted by the same enzymes. In other words, if more omega-6 fatty acids are consumed, only a few enzymes remain for the absorption of omega-3 fatty acids. An omega-6 to omega-3 ratio of 5:1 is recommended.

You can find out even more interesting facts about omega-3 fatty acids in the blog post "What you need to know about omega-3 fatty acids".

Vitamin D

Strictly speaking, the so-called sun vitamin is not a vitamin at all, as it can be produced in the skin itself under the influence of sunlight. However, as the sun does not provide us with sufficient vitamin D all year round and covering our vitamin D requirements with food plays a subordinate role, it is often difficult to obtain an adequate supply of vitamin D. According to data from the Robert Koch Institute, almost 60% of adults in Germany are therefore not optimally supplied with vitamin D. Supplementation is therefore necessary to compensate for this deficiency.

Vitamin D has a variety of functions in the human body, as almost all body cells have receptors for the vitamin. Among other things, it contributes to the regulation of calcium and phosphate metabolism, influences the immune system, has an influence on muscle metabolism and has positive effects on bone health. A deficiency therefore leads to various disorders and malfunctions. For example, vitamin D is often associated with autoimmune diseases such as multiple sclerosis (MS). Supplementation can therefore have a positive influence on the course of MS.

Vitamin K

Vitamin K can only be produced in small quantities by the intestinal bacteria in our body. It must therefore be taken in through food or supplements.

Vitamin K plays an important role in blood coagulation, bone and collagen metabolism and cell growth. The consequences of a deficiency are therefore blood clotting disorders and reduced bone health. Vitamin K supplementation is particularly useful in osteoporosis, as this leads to increased bone resorption. Supplementation leads to fewer fractures in postmenopausal women suffering from osteoporosis


O3-D3-K2 Vegan: Why is a combination useful?

Combined preparations with vitamin D and vitamin K are often found, as the two vitamins have synergistic effects and therefore work optimally as a team. Both vitamins work together to strengthen the bones and promote the health of the heart and arteries. Vitamin K ensures that calcium is stored where it is needed, such as in the bones or teeth, and not in the arteries. This process takes place via vitamin K-dependent Gla proteins, which can only be activated by vitamin K. If you also take vitamin D, the body produces more vitamin K-dependent proteins. It therefore makes sense to take vitamin K and vitamin D at the same time.

So why take additional omega-3 fatty acids at all? Vitamin K and vitamin D are fat-soluble vitamins. As the omega-3 fatty acids contained in algae and flaxseed oil promote the absorption and effectiveness of fat-soluble vitamins, it is beneficial to take a combination of these three substances. Omega-3 fatty acids also have a positive effect on the heart and circulation 


Effective combination supplement - what's inside

Three capsules of our O3-D3-K2 contain:

  • 15 µg vitamin D (300 % of the NRV)
  • 37.5 µg vitamin K (50 % of the NRV)
  • 318 mg omega-3 fatty acids (docosahexaenoic acid and alpha-linolenic acid) from algae and linseed oil

All ingredients in our high-dose O3-D3-K2 capsules are vegan. Go to the product here.

Important: People aged 50 and over in particular are often affected by cardiovascular disease or osteoporosis. It is therefore particularly advisable to take the three


  • Bieslaski K. et al. (1999) Ernährungsmedizin - Nach dem Curriculum Ernährungsmedizin der Bundesärztekammer. Georg Thieme Verlag, 2nd edition, Stuttgart.
  • Biesalski K. and Grimm P. (2007) Pocket atlas of nutrition. Georg Thieme Verlag, 4th edition, Stuttgart.