Vitamin D3
1,000 IU
1,750 Drops

1,750 drops containing 1,000 IU vitamin D3 each. Vegetarian, premium active ingredient from the USA, custom-made product, no hidden additives. Embedded in high-quality, protective MCT carrier oil (coconut) produced in Germany. Optimal bioavailability, non-GMO, produced in the EU. 50ml amber glass bottle with glass dropper.
  • Premium active ingredient: custom-made vitamin D3 produced in the USA
  • Raw materials embedded in MCT oil no hidden oils
  • D3 content guaranteed by the German Federal Joint Committee (G-BA)
  • High-quality, medium-chain fatty-acids (MCT coconut oil) produced in Germany used as carrier oil
  • Unique purity only 2 ingredients: no hidden additives (no synthetic vitamin E, ascorbyl palmitate, or palm oil)
  • Optimal active ingredient preservation due to the purity of the product and the carrier oil used
  • Oil-based, therefore directly bioactive: fat-soluble D3 can readily be absorbed in the mouth
  • Environmentally friendly amber glass bottle with a glass dropper deal for accurate dispensing
  • Full 1,000 IU (25µg) D3 per drop, ideal for long-term vitamin D administration and combination with vitamin K2

Delivery : 1–3 business days

Incl. VAT, excl. Shipping

€198.00 / 1l
In stock

Premium Bioactive Ingredients

  • Premium active ingredient quality: D3 from special production for us without hidden additives
  • MCT-based raw material - no hidden low-quality oils
  • D3 content in the final product guaranteed by the German Laboratory GBA guaranteed
  • High quality MCT carrier oil (from coconut) produced in Germany, cultivation without plant protection products
  • Unique purity - only 2 ingredients: no hidden additives (no synthetic vitamin E, ascorbypalmitate, palm oil)
  • Optimal preservation of active ingredients due to purity and ideal carrier oil
  • Directly bioactive due to oil base: fat-soluble D3 is already absorbed in the oral cavity

How are we different?

All of our vegetarian vitamin D products contain premium vitamin D3 as an active ingredient, which is custom-made according to our strict specifications, and without any additives except vitamin E and a high quality MCT coconut oil as a carrier oil. This product is notable for its absolute purity and guaranteed vitamin D3 content. Vitamin D3 products often contain a wide variety of different additives, including some which are highly questionable but are not legally required to be declared, such as synthetic vitamin E, ascorbyl palmitate, silicon dioxide, modified starch, sucrose, denatured vegetable oils, and maltodextrin. However, our vitamin D3 is ultra pure due to our unique production process. It is custom-made for us by a specialised manufacturer according to our strict specifications and is completely free from common hidden additives.

Sunday Natural vitamin D drops contain only 2 ingredients: vitamin D3 and MCT oil.

MCT Coconut Oil for Optimal Absorption

Vitamin D is a fat-soluble vitamin that can only be absorbed by the body when combined with fats. Sunday Natural vitamin D3 is dissolved in high-quality MCT oil for optimal bioavailability and can therefore be directly utilised by the body. In contrast to capsules and tablets that must first be digested in order for their active ingredients to be released, vitamin D3 combined with oil is readily available and can be optimally absorbed. Our MCT coconut oil is completely free from additives and the medium-chain fatty acids in the carrier oil constitute valuable nutrients themselves.

Oils are easy to use, and are therefore suitable for those who have difficulty swallowing capsules and tablets. All our oils come in amber glass bottles with a high-quality glass dropper. In contrast to dispensing bottles, which are often difficult to use and clog easily, glass droppers are ideal for precise usage.


  • Premium active ingredients in their purest form
  • Sourced directly from the world’s best producers
  • Our select raw materials are the basis of all our formulations
  • Complete avoidance of all unnecessary additives and adjuvants
  • Exclusive use of valuable natural ingredients for additives
  • We voluntarily declare all ingredients
  • All extractions performed without the use of chemical solvents
  • Custom production when necessary, in order to achieve the highest possible level of purity
  • Independent laboratory testing available on product pages
  • Raw materials sourced only from premium suppliers who are committed to fair working conditions
  • Amber glass and compostable pouches used for packaging
  • Vegan capsule shells, free from PEG and carrageenans
  • Packaged in the EU according to HACCP, GMP and ISO 22000:2018 standards
  • Stored in non-toxic containers
  • Shipped in mineral oil-free boxes
  • All products guaranteed 100% free from magnesium stearate, silicon dioxide, nanoparticles (no legal opportunism), genetic engineering, artificial colours and flavours, titanium dioxide and added sugar & sweeteners


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 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.


Recommended Dosage

Take 1 drop daily with food.

Daily Requirements

The contradictory information surrounding daily requirements for vitamin D intake can be very confusing. Daily recommendations vary greatly between different organisations and governing bodies.

For example, the EU recommends a daily intake of 200 IU for adults, while the German Nutrition Society (DGE) recommends 800 IU.

However, numerous researchers and nonprofit organisations believe that these recommendations are too low and are not enough to prevent deficiency. An intake of at least 1,500-2,000 IU or 3,000-6,000 IU are recommended by the American Endocrine Society and the Vitamin D Council (USA), respectively.

Food Supplement

Do not exceed the recommended dose. Food supplements cannot replace a balanced and varied diet. Note: Not suitable for children under 7 years. Keep out of reach of children.


Store in a cool, dry place away from direct sunlight and heat. To optimise shelf-life, keep in the refrigerator.


Ingredients: MCT Oil (Medium-Chain Triglycerides, from Coconut Oil), Vitamin D3 (vegetarian, from Sheep's Wool).

Ingredients per Daily Dose (1 Drop) % NRV*
Vitamin D3 1,000 IU (25µg) 500%

* Nutrient Reference Value

In total: 1,750 drops / 1,750,000 IU / bottle

Product Details

German Pharmaceutical Number (PZN)
High-quality raw materials from certified manufacturers in the USA and Europe Production in the EU
In-house production in Europe, bottling and encapsulation in the EU according to HACCP, GMP / ISO 22000:2018 standards
Finished products packaged in amber glass jars, and stored in non-toxic containers
Shipping in mineral oil-free boxes
Amber glass bottle to protect against light and oxidation (free from plasticisers and BPA)
Includes glass dropper for accurate dispensing
To Reuse Remove product label by soaking the jar in warm water for 5 minutes. Glue residue can be removed with dish soap

Laboratory Tests

The purity of our formulas is important to us. This is why we have both our raw ingredients as well as our finished products extensively tested by independent laboratories to confirm purity and active ingredient content. Here, we have provided the results of some of the tests carried out on this product.

Sunday Natural

Our Philosophy

For thousands of years, cultures all over the world have been using medicinal plants and nutritious foods to naturally foster and maintain vitality and good health.

With our products, we try to emulate this ancient wisdom as much as possible.

Consequently, our philosophy is simple: everything we do meets the highest standards of quality and purity; our focus is on organic and natural ingredients.

We follow this philosophy with meticulous care on all levels and down to every last detail.

Learn more

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