Vitamin D and Vitamin K2 – What They Do and How to Get Enough
In short: Vitamin D contributes to normal absorption of calcium and to the maintenance of normal bones, and vitamin K also contributes to the maintenance of normal bones and to normal blood clotting. That is why they are often combined in one product, for example in oil-based drops.
What is vitamin D?
Vitamin D is a group of vitamins whose best-known forms are vitamin D3 (cholecalciferol) and vitamin D2 (ergocalciferol). Vitamin D3 is produced by the skin when exposed to sunlight, while vitamin D2 occurs in plants, fungi and yeasts.
Vitamin D contributes to:
- normal absorption and utilization of calcium and phosphorus,
- normal blood calcium levels,
- the maintenance of normal bones and teeth,
- the maintenance of normal muscle function,
- the normal function of the immune system.
Vitamin D is needed for normal growth and development of bone in children.
Vitamin D in the Marnys Range
Marnys Vitamin D3 Drops have a neutral taste, are made with extra virgin olive oil and are easy to dose drop by drop, from infancy. From the age of 12, Marnys Vitahelp D3 4000 IU softgel capsules are also an option, with 4,000 IU of vitamin D3 per capsule.
If you are curious about your own vitamin D level, the WhiteLab Vitamin D Rapid Test gives an informational result from a fingertip blood sample. An exact value can only be obtained from a laboratory test; it is a good idea to discuss the result with your doctor.
Vitamin Finder – free, 1 minute
Drops, vials or capsules – which is right for you? Based on 5 short questions, we recommend 2–3 in-stock products – by age, goal, form and budget.
What is vitamin K2?
Vitamin K contributes to normal blood clotting and to the maintenance of normal bones. Natural sources of vitamin K2 include fermented foods (such as natto) and, in smaller amounts, cheeses and egg yolk.
Marnys Vitamin K2 and D3 Drops provide both vitamins in a single product, with extra virgin olive oil. Vitamin D contributes to normal absorption and utilization of calcium, and vitamin K contributes to the maintenance of normal bones.
Summary
Vitamins D and K both contribute to the maintenance of normal bones. It is especially worth paying attention to your vitamin D intake in the fall and winter months, when we get less sunlight. The foundation is always a varied diet and time spent outdoors every day; a food supplement is worth choosing if these do not cover your needs.
Vitamin D is also found in several Marnys multivitamins, such as Protect Junior. If you take several food supplements, keep in mind that some products may contain the same ingredients.
Source of the image at the top of the article: https://www.marnys.com/en/magazine/vitamin-d/
Related Reading
- Vitamin D3 – encyclopedia
- Vitamin K2 – encyclopedia
- Which vitamin D drops are good for children?
- Vitamin D drops in our range
Marnys Vitamin K2 and D3 Drops
Oil-based drops with vitamins D3 and K2 in an easy-to-dose form. Get a 5% cart discount on orders over 50,000 HUF.
Frequently Asked Questions
Why is vitamin D combined with vitamin K2?
Both vitamins contribute to the maintenance of normal bones: vitamin D plays a role in calcium absorption, and vitamin K also plays a role in normal blood clotting. Combining them in one product is a convenient solution.
When is it worth taking vitamin D?
From October to March, there is too little sunlight for the skin to produce enough vitamin D, which is why many people start supplementing at this time. The daily dose is stated on the package.
Can I take vitamin K2 while on blood thinners?
Vitamin K may affect how certain anticoagulant medicines work, so in such cases be sure to consult your doctor.
Should I take it with a meal or after?
Vitamins D and K are fat-soluble, so many people take them with a meal that contains some fat. The manufacturer's recommendation is stated on the package.
Sources and Further Reading
- NIH Office of Dietary Supplements – Vitamin D – an easy-to-understand summary
- NIH Office of Dietary Supplements – Vitamin K – an easy-to-understand summary
- European Commission – EU Register of Nutrition and Health Claims – the official list of claims authorized in the EU
Food supplements are not a substitute for a varied, balanced diet and a healthy lifestyle. If symptoms persist, consult a doctor or pharmacist.


