Vitamin D3 occurs naturally almost exclusively in animal sources, especially fish, dairy products, and eggs, as well as in meat. Plants such as lichens also contain vitamin D, as do various mushrooms, which, however, contain the less effective vitamin D2.
Vitamin D occupies a very special position among vitamins. On the one hand, it is one of the few vitamins that we hardly consume through food, but instead produce it in the skin with the help of the sun. On the other hand, vitamin D is not a vitamin in the classic sense, but rather a hormone precursor.
Unlike many other vitamins, it is converted in the body into an important hormone that controls the function of cells and numerous physical processes. Almost all body cells have special receptors for the vitamin D hormone and are dependent on an adequate supply of vitamin D.
Vitamin D and vitamin K2 are cofactors in the regulation of calcium metabolism. Together, the two vitamins control bone-building and breaking-down cells and important transport molecules that ensure the correct utilization of calcium.
Vitamin K for bone health
Vitamin K is necessary for the activation of numerous vitamin K-dependent proteins (so-called VKDPs). Without this activation, VKDPs are not functional. The majority of VKDPs are involved in calcium and bone metabolism. For example, there are vitamin K-dependent proteins for calcium transport. The most important of these transport proteins are the matrix Gla protein (MGP) and Gla-rich protein (GRP). These bind calcium (for example in the blood vessels) and can transport it to the bones.
The most well-known vitamin K-dependent protein is the osteocalcin mentioned above. This is directly involved in building the bone structure.
Synergy with Vitamin K
Vitamin D works synergistically with vitamin K for bone metabolism. This is particularly clear from the interaction within the function of osteocalcin. While vitamin D stimulates the formation of osteocalcin, vitamin K is necessary to subsequently activate it and store calcium correctly in the bones. However, both vitamins also have independent effects on bone and calcium metabolism.
The following statements about vitamin D have been approved by the EU (EFSA):
Vitamin D contributes to:
normal absorption and utilization of calcium and phosphorus
a normal calcium level in the blood
- the preservation of bones
- maintaining normal muscle function
- maintaining healthy teeth
- a normal function of the immune system
- Vitamin D has a function in cell division
- normal blood clotting
- maintaining normal bones
MCT oil (MCT = medium-chain triglycerides from coconut oil), vitamin D3 (cholecalciferol)
Vitamin D3, per daily dose*: 25 µg (1000 IU), NRV**: 500%
Vitamin K2, per daily dose*: 20 µg, NRV**: 27%
* 1 drop **Percentage of nutrient reference values according to Regulation (EU) No. 1169/2011.
Take 1 drop undiluted daily.
The recommended daily dose should not be exceeded.
Dietary supplements are not a substitute for a balanced,
varied diet and healthy lifestyle.
Keep out of reach of small children.
Contents: ℮ 50 ml 1,700 drops Store tightly closed, cool, dry and protected from light.
Packaging in brown glass
We deliver this premium product exclusively light-protected brown glass. In our opinion, the higher effort and costs are justified. Because a premium product also deserves premium packaging. Brown glass offers the following advantages:
- Glass does not react with other elements, is non-toxic, heat stable and easy to clean
- Brown glass reliably protects the contents from oxidation
- No petroleum is used to produce brown glass, it is melted sand
- Glass is 100% recyclable
- The glass can be used in many ways in the household