Vitamin D
Vitamin D3 occurs in nature almost exclusively in animal sources and particularly in fish, dairy products, eggs and meat. Plants, such as lichens and various fungi contain only very small amounts of the much less effective vitamin D2.
Vitamin D plays a very important role. It is one of the few vitamins that is not absorbed directly from food, but rather produced by skin cells from sunlight. It is not a vitamin in the traditional sense of the word, but rather a pro-hormone.
In contrast to many other vitamins, vitamin D is converted into an important hormone which regulates cell functioning and bodily processes. Almost all bodily cells have special receptors for the vitamin D hormone that are dependent on sufficient supply.
Vitamin D and vitamin K2 are cofactors in the regulation of calcium metabolism.Together, the two vitamins control the formation and breakdown of bone cells and important transport molecules that ensure the correct utilisation of calcium. Sunday Natural Vitamin D3 and K2 MK7 combines the two nutrients in a ratio that ensures optimal synergy.
Vitamin D is still being intensively researched. New mechanisms of action of this fascinating vitamin are discovered almost every year. So far, the following statements on vitamin D have been released by the EU (EFSA):
Vitamin D contributes to:
- Normal absorption and utilisation of calcium and phosphorus
- Normal blood calcium levels
- The maintenance of bones
- The maintenance of normal muscle function
- The maintenance of healthy teeth
- Normal function of the immune system
Vitamin D has a function in cell division.
Vitamin K
Vitamin K exists in nature as vitamin K1 (phylloquinone) and vitamin K2 (menaquinone), with vitamin K2 appearing to be the more active of the two forms. Phylloquinone is primarily found in plants, while menaquinone is produced by some human gut bacteria or is present in foods fermented by microorganisms, such as sauerkraut or the Japanese dish natto.
Vitamin K2
In the body, vitamin K2 activates a series of specific proteins that play roles in important metabolic processes, including calcium transport and utilisation, blood clotting, cell division regulation, cell differentiation, cell migration, and crucial repair processes in various vessels and organs.
Currently, almost all regulatory authorities do not separate vitamin K2 specifically, but rather consider all vitamins in the K group collectively. As a result, the statements approved for Vitamin K1 apply to Vitamin K2 as well.
Vitamin K contributes to:
- Normal blood clotting
- Maintenance of normal bones
Original K2Vital® - Vitamin K2 MK7 all-trans from Norway
Vitamin K2 exists in different forms, which all have varying levels of effectiveness. Vitamin K2 MK7 is now recognised as the most potent form of K2. However, significant differences exist even among different vitamin K2 MK7 substances due to variations in the molecular structure of the vitamin, including cis and trans isomers of Vitamin K2. It is believed that only the trans form of vitamin K2 can be utilised by the body.
Our Original K2VITAL® Vitamin K2 from Norway is one of the few substances on the market that can guarantee 100% of the highly effective all-trans MK7 for the stated vitamin K2 content, ensured through a specialised lab test conducted in Norway.
Vitamin K2 and Vitamin D
Vitamin K2 is the primary partner of vitamin D in regulating calcium metabolism. Together, these two vitamins govern bone-building and bone-resorbing cells, as well as vital transport molecules that ensure proper calcium utilisation.
