rubyni® Vitamin D
Searched and Found—Vegan Vitamin D3 from Algae
Dietary supplement containing vitamin D derived from non-GMO algae. 100% vegan, gluten-free, and lactose-free.
Ingredients: Organic broccoli powder, D-alpha-tocopherol (vitamin E) from soybeans, and cholecalciferol from algae (Vitamin D3V®). Coating agent: Hydroxypropyl methylcellulose (plant-based capsule shell).
One capsule contains 20 μg = 800 International Units (IU) of plant-based vitamin D3 from algae—which is equivalent to 400% of the daily value according to the NRV*.
It also provides 3.6 mg of vitamin E (as D-alpha-tocopherol) from non-GMO soybeans—that’s 30% of the daily value according to the NRV*.
*NRV = nutrient reference value (for adults according to the Food Information Regulation (LMIV))
Recommended Use: Take one capsule per day with sufficient liquid, without chewing, with a meal. To ensure that the two fat-soluble vitamins, D and E, are optimally absorbed by your body, the meal should contain healthy fats. Do not exceed the recommended daily intake.
60 capsules €59.90
Includes sales tax; shipping not included
rubyni® Vitamin D from a natural source
We source the vitamin D3 for our rubyni Vitamin D from select algae that are grown without the use of genetic engineering. In addition, the vegan capsules contain vitamin E derived from non-GMO soybeans.
Vitamin D plays a role in numerous processes in your body. Among other things, it helps maintain normal bones and normal muscle function.1
- 100% plant-based vitamin D3 (cholecalciferol) from algae
- 1 capsule provides 20 µg = 800 International Units (IU) of vitamin D3
- vegan, lactose- and gluten-free
- No added preservatives
How much vitamin D does our body need?
When the skin is exposed to sufficient sunlight, this stimulates the body’s production of vitamin D. However, especially during the winter months, the intensity of sunlight may be too low to adequately support the production of vitamin D in the skin. In the summer, many people often spend time indoors or protect their skin from direct sunlight.2,3
Generally, only small amounts of vitamin D are obtained from food. It is found, for example, in egg yolks, liver, and fatty fish such as salmon.2,3
When might taking a vitamin D supplement be beneficial?
Studies show that vitamin D levels can vary among the general population and are not always optimal. In certain situations, it may therefore be advisable to take targeted vitamin D supplements.
The European Union (EU) specifies a Nutrient Reference Value (NRV) of 5 micrograms (µg) per day for vitamin D for both genders. This reference value serves as a guideline for the labeling of dietary supplements.1
In cases where the body’s own production of vitamin D is absent or limited, the German Nutrition Society (DGE) recommends a daily intake of 20 μg of vitamin D for adult women and men. This corresponds to 800 International Units (IU).3
Note: The recommended intake applies to healthy adults. Individual vitamin D needs may vary. 2
rubyni® Vitamin D – What’s in Our Capsules
One rubyni Vitamin D capsule contains 20 µg of vitamin D3 (cholecalciferol) derived from algae. This is exactly the amount recommended by the DGE when the body cannot produce it on its own—and corresponds to 400 % of the Nutrient Reference Value (NRV*).
In addition to vitamin D, each rubyni capsule contains 3.6 mg of vitamin E (D-alpha-tocopherol). This amount corresponds to 30% of the daily value according to the NRV*. It is derived from soybeans.
*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 D at a Glance
rubyni Vitamin D is a dietary supplement that contains vitamin D in the form of vitamin D3 (cholecalciferol). We source this nutrient from GMO-free algae. These algae grow off the coasts of Europe, where they are cultivated under controlled conditions.
In addition, the capsules contain vitamin E from a plant source, derived from non-GMO soybeans.
The recipe is complemented by organic broccoli powder grown in Germany.
Good to know:
Vitamin D—a nutrient essential for numerous bodily functions
Fat-soluble vitamin D is involved in numerous processes in the body. For example, it helps maintain normal bones and teeth, supports the normal absorption and utilization of calcium and phosphorus, and helps maintain normal blood calcium levels. Calcium and phosphorus are the two most abundant minerals in the body. Among other things, they are components of bones and teeth.4,5
In addition, vitamin D supports normal immune system function and plays a role in cell division. Cell division is a natural process in which cells in the body renew and multiply. Would you have thought that several million cell divisions take place in the human body every second? 1,6
What role does vitamin D play in the body (Health Claims)?
Vitamin D plays a role in numerous normal bodily functions:
Vitamin D
- contributes to the normal absorption/utilization of calcium and phosphorus
- contributes to a normal calcium level in the blood
- contributes to the maintenance of normal bones
- contributes to the maintenance of normal muscle function
- contributes to the maintenance of normal teeth
- contributes to the normal function of the immune system
- has a function in cell division
What makes rubyni Vitamin D so special?
rubyni Vitamin D contains vegan vitamin D₃ from a plant-based source, derived from non-GMO algae. The dosage of 20 μg is based on the reference values set by the German Nutrition Society for cases of reduced endogenous vitamin D production. The formula is supplemented with vitamin E from plant sources and organic broccoli powder grown in Germany. Additionally, the product contains no preservatives.
Who is rubyni Vitamin D suitable for?
rubyni Vitamin D can be a way for adults to supplement their vitamin D intake, especially during periods of low sunlight or when the body’s natural production is limited. Thanks to its vegan formulation, it is also suitable for vegetarian and vegan diets.
How much rubyni vitamin D should I take each day?
We recommend that adults take one rubyni Vitamin D capsule daily with plenty of water—preferably with a meal that also contains healthy fats, since vitamins D and E are both fat-soluble. The capsule can be taken at any time of day. One rubyni Vitamin D capsule provides 20 μg of vitamin D (400% of the daily value according to NRV*) and 3.6 mg of vitamin E (30% of the daily value according to NRV*). Do not exceed the recommended daily intake.
Is Rubyni Vitamin D vegan, gluten-free, and lactose-free?
Yes, for rubyni Vitamin D, we use plant-based sources: We derive vitamin D3 from algae, and the vitamin E—which is also contained in the capsules—is derived from soybeans. The capsule shell is plant-based. The product is therefore 100% vegan. It is also gluten-free and lactose-free.
What role does vitamin D play in the health of muscles, bones, and teeth?
Vitamin D plays a role in various bodily functions. For example, it contributes to normal muscle function and helps maintain normal bones and teeth. In addition, vitamin D supports the absorption and utilization of calcium and phosphorus. These two minerals are components of bones and teeth.1
References:
1) 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 17, 2026
2) German Nutrition Society (DGE). Selected Questions and Answers on Vitamin D. As of 2012. https://www.dge.de/gesunde-ernaehrung/faq/vitamin-d/, last accessed on June 17, 2026
3) German Nutrition Society (DGE). Reference value: Vitamin D. As of 2012. https://www.dge.de/wissenschaft/referenzwerte/vitamin-d/, last accessed on June 17, 2026
4) Austrian Public Health Portal. Phosphate. As of October 31, 2023. https://www.gesundheit.gv.at/labor/laborwerte/organe-stoffwechsel/phosphat.html, last accessed on June 22, 2026
5) Austrian Public Health Portal. Calcium. As of October 30, 2023. https://www.gesundheit.gv.at/labor/laborwerte/organe-stoffwechsel/calcium-ca1-hk.html, last updated on June 22, 2026
6) University of Vienna. When Cell Division Goes Wrong. As of March 18, 2022. https://rudolphina.univie.ac.at/zellteilung-das-passiert-wenn-sie-schiefgeht, last accessed on June 22, 2026
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