rubyni® Vitamin K
Vitamin K2 MK7 – derived from fermented organic parsley
Dietary supplement with vitamin K2 (MK7a form) fromparsley leaves, available at
. 100% vegan, gluten-free, lactose-free, and 100% organic.
Ingredients: Organic spinach powder, organic parsley leaf powder, coating agent hydroxypropyl methylcellulose (plant-based capsule shell),organic parsley extract (from Petroselinum crispum, 0.3% vitamin K2, menaquinone 7, MK7)
One capsule contains 75 µg vitamin K.
Recommended Use: Take one capsule daily with plenty of liquid, without chewing, with a meal. To ensure that your body can optimally absorb the fat-soluble vitamin K, the meal should also contain healthy fats.
Do not exceed the recommended daily intake.
Note: People taking anticoagulant medications (warfarin-type 1) should consult a doctor before taking dietary supplements containing vitamin K.
60 capsules €59.90
Includes sales tax; shipping not included
rubyni® Vitamin K from vegan raw materials
We use a vegan source for our rubyni Vitamin K: The capsules contain an extract from fermented parsley leaves. The vitamin K is therefore present as K2 (in the form of MK7).
Your body needs vitamin K for two key processes: It helps maintain normal bone health and supports normal blood clotting.2
- Fermented organic parsley extract as a source of vitamin K2 (form: MK7)
- One capsule contains 75 micrograms (µg) of vitamin K
- vegan, lactose- and gluten-free
- 100% organic
- No added preservatives
How much vitamin K does your body need?
Vitamin K must be obtained primarily through the diet. But how much do we need? The German Nutrition Society (DGE) provides estimated values for various age groups:3
- Women up to age 50: 60 µg of vitamin K per day,
- Women 51 and older: 65 µg daily,
- Men up to age 50: 70 µg per day,
- Men aged 51 and older: 80 µg daily.
The European Union (EU), on the other hand, does not distinguish between genders or age groups and specifies a uniform daily intake of 75 µg of vitamin K. This is known as the Nutrient Reference Value (NRV). It serves as a guideline for manufacturers of dietary supplements when it comes to labeling vitamins and minerals.4
Understanding Vitamin K: Two Forms, Different Sources
Fat-soluble vitamin K occurs naturally in two forms: vitamin K1 (phylloquinone) and vitamin K2 (menaquinone, abbreviated MK). The first form is found in plant-based foods, particularly in green leafy vegetables such as spinach, broccoli, kale, and parsley.5,6
K2 is produced by bacteria—and is naturally present in animal products such as eggs, meat, and dairy products when these foods are consumed.7,8 There are several subtypes of K2, and MK7 is one of them.
When storing food, it is important to note that vitamin K is sensitive to light. Storing food away from light can help preserve its vitamin content.7
rubyni® Vitamin K – What’s in Our Capsules
One rubyni Vitamin K capsule contains 75 µg of vitamin K. This corresponds to 100% of the daily value according to the NRV*. You can use it to supplement your daily vitamin K intake as part of a balanced diet.
*NRV = nutrient reference value (for adults according to the Food Information Regulation (LMIV))
Note: Food supplements should not be used as a substitute for a balanced and varied diet or to replace a healthy lifestyle.
rubyni® Vitamin K at a Glance
rubyni Vitamin K is a dietary supplement that contains vitamin K2 from a purely vegan source: fermented organic parsley extract.
We source the raw material for this from parsley that is organically grown in India. After harvesting, the leaves are gently dried and then inoculated with bacteria that trigger a controlled fermentation process, during which vitamin K2 in the form of MK7 is produced.
The vitamin content in our capsules is standardized. This means we can always provide you with consistent quality.
In addition, our product contains organic spinach powder and organic parsley leaf powder. We use vegetables from Germany that are also organically grown.
Good to know:
Vitamin K: Contributes to normal bone health and normal blood clotting
When it comes to important nutrients for bones, most people first think of calcium, vitamin D, and magnesium. Calcium and magnesium are components of the mineral structure of bones.9 Vitamin D helps the body absorb calcium from food. Less well known in this context is vitamin K: It also helps maintain normal bones.
Another interesting detail: Bone density changes as we age. An active lifestyle and a balanced diet can contribute to overall bone health.10
What role does vitamin K play in blood clotting?
When we injure ourselves, blood clotting ensures that the bleeding stops. It occurs as a step-by-step chain reaction, known as the coagulation cascade.11 Vitamin K contributes to normal blood clotting.2
Note: Some people take anticoagulant medications. Some of these work by inhibiting vitamin K. Therefore, people taking anticoagulant medications should consult a doctor before taking dietary supplements containing vitamin K. This is especially true when taking other medications, including antibiotics, that may affect the body’s utilization of vitamin K.12,13
What role does vitamin K play in your body (Health Claims)?
Vitamin K has two important functions in yourbody7:
Vitamin K
- contributes to the maintenance of normal bones
- contributes to normal blood clotting
What makes rubyni Vitamin K so special?
rubyni Vitamin K contains vitamin K2 in the form of MK7 from a vegan source. The raw material is organic parsley extract, which is processed using bacteria in a controlled fermentation process. It is supplemented with organic spinach and organic parsley leaf powder grown in Germany. The product is vegan and 100% organic.
In what form is the nutrient present in rubyni Vitamin K?
Vitamin K comes in two forms: Form K (phylloquinone) is found in plant-based foods, particularly in green leafy vegetables. Vitamin K2 is produced by bacteria and is also found in animal-based foods such as meat, eggs, and dairy products. rubyni Vitamin K contains vitamin K2—specifically the MK7 subtype. It is derived from a fermented parsley extract and is therefore sourced from a vegan source.
How many Rubyni Vitamin K capsules should I take each day?
For adults, the recommended intake is one rubyni Vitamin K capsule per day with a meal—taken with plenty of water and without chewing. For optimal absorption of this fat-soluble vitamin, the meal should also contain healthy fats. One capsule provides 75 µg of vitamin K. This corresponds to 100% of the daily value according to the NRV*.
*NRV = nutrient reference value (for adults according to the Food Information Regulation (LMIV))
Is rubyni Vitamin K vegan, lactose-free, and gluten-free?
Yes, rubyni Vitamin K is made from 100% vegan ingredients in a plant-based capsule shell (made from hydroxypropyl methylcellulose): The vitamin K comes from a fermented parsley extract. In addition, our product contains spinach and parsley leaf powder. All ingredients are lactose- and gluten-free.
What role does vitamin K play in your body?
Vitamin K performs important functions in the body: It helps maintain normal bones and supports normal blood clotting. Blood clotting is important for stopping bleeding after an injury.
References:
1) Mikroco-Wissen.de. Vitamin K. As of September 4, 2023. Published by: Federal Institute for Risk Assessment (BfR). https://www.mikroco-wissen.de/vitamine/vitamin-k/, last accessed June 29, 2026
2) Commission Regulation (EU) No. 432/2012 of May 16, 2012, establishing a list of permitted health claims made on foods, other than those referring to the reduction of disease risk and to children’s development and health. As of August 20, 2025. https://eur-lex.europa.eu/legal-content/DE/TXT/?uri=CELEX%3A02012R0432-20250820, last accessed on June 29, 2026
3) German Nutrition Society (DGE). Reference value: Vitamin K. As of 2000. https://www.dge.de/wissenschaft/referenzwerte/vitamin-k/, last accessed on June 29, 2026
4) Regulation (EU) No. 1169/2011 of the European Parliament and of the Council of October 25, 2011. https://eur-lex.europa.eu/legal-content/DE/TXT/PDF/?uri=CELEX:32011R1169&from=EN, last accessed on June 29, 2026
5) VitaminDoctor.com. Vitamin K for Blood Clotting, Bones, and Blood Vessels. As of August 27, 2024. https://www.vitamindoctor.com/naehrstoffe/vitamine/vitamin-k, last accessed on June 29, 2026
6) AOK.de. Health Magazine. Vitamin K—the nutrient for strong bones and blood clotting. As of May 3, 2024. https://www.aok.de/pk/magazin/ernaehrung/vitamine/vitamin-k-wichtig-fuer-blutgerinnung-und-knochen/, last accessed June 29, 2026
7) Netdoktor.de. Vitamin K – Foods High in Vitamin K. As of October 17, 2023. Published by BurdaVerlag Publishing GmbH. https://www.netdoktor.de/ernaehrung/lebensmittel/vitamin-k-lebensmittel/, last accessed June 29, 2026
8) Professional Association for Nutritional Therapy and Prevention (FET). Vitamin K – Brief Overview (Short Profile). As of March 31, 2026. https://fet-ev.eu/kurzprofil/vitamin-k-steckbrief/, last accessed June 29, 2026
9) Linus Pauling Institute, Oregon State University. Bone Health in Depth. Last updated: April 19, 2019. https://lpi.oregonstate.edu/mic/health-disease/bone-health#micronutrients, last accessed June 29, 2026
10) International Osteoporosis Foundation (IOF). Healthy Diet, Healthy Bones. As of 2015. https://www.osteoporosis.foundation/sites/iofbonehealth/files/2019-03/2015_HealthyNutritionHealthyBones_ThematicReport_German.pdf, last accessed on June 29, 2026
11) DocCheck Flexikon. Hemostasis. Last updated: May 28, 2026. https://flexikon.doccheck.com/de/H%C3%A4mostase, last accessed on June 29, 2026
12) Apotheken-Umschau. Are you taking blood thinners? Why some people should be cautious about eating green vegetables. Updated: January 29, 2025. https://www.apotheken-umschau.de/medikamente/blutgerinnungshemmer-bei-manchen-lebensmitteln-mit-vitamin-k-ist-vorsicht-geboten-1226265.html, last accessed June 29, 2026
13) Yan H et al. The relationship between gut bacteria, vitamin K, and the response to vitamin K antagonists: A review of findings and possible mechanisms. Front Med (Lausanne). April 18, 2022; 9: 829304. https://pmc.ncbi.nlm.nih.gov/articles/PMC9058076/
Convinced by rubyni®
EXPERIENCES THAT BUILD TRUST
Tobias Angerer
Cross-country skier
As a former professional athlete and health-conscious person, my physical performance and well-being are extremely important to me. That's why I take rubyni® with elderberries - it's now part of my daily routine. I am convinced of the positive effects of elderberries on my immune system, my energy levels and my fitness, especially during regeneration after periods of exertion.
Andrea Sokol
Phytotherapist | Nutrition and health consultant
I work as a nutrition and health consultant and am a trained phytotherapist. Transparency, sustainability and quality are very important to me. And I have to say that rubyni® has completely won me over as a brand. The capsules contain only extremely high-quality and natural ingredients whose effectiveness has been proven by studies and which provide the body with important nutrients. I have published several videos about my personal rubyni® journey on my YouTube channel Ohlala & Solala. There I tell you even more about what makes this dietary supplement so special from my point of view.
Hanna Kebinger
Biathlete
As a biathlete, I have to be fit and able to perform at the drop of a hat. I had big problems with that in the past. My body was repeatedly weakened and I had to put up with many setbacks. When I was looking for a solution to support my immune system in the long term, my naturopath introduced me to elderberries as a superfood, among other things. I now take rubyni® with elderberries every day. The capsules are also super handy when I'm on the World Cup circuit. Rubyni® is a valuable aid for me during stressful competition phases and my immune system is finally back on top form.
Prof. Dr. rer. nat. Michaela Döll