About Ostrovit – Vitamin D3 4000 + K2 – 100 tablets
Ostrovit Vitamin D3 4000 + K2 combines two essential fat-soluble vitamins in a single convenient tablet. Each daily serving delivers 100 µg (4000 IU) of Vitamin D3 as cholecalciferol alongside 100 µg of Vitamin K2 as high-bioavailability menaquinone-7 (MK-7), sourced from Bacillus subtilis natto. This pairing is designed to support everyday wellbeing through two well-established nutritional roles in one easy-to-take format.
Vitamin D contributes to the normal function of the immune system, the maintenance of normal bones and teeth, normal muscle function, and the normal absorption and utilisation of calcium and phosphorus. Vitamin K contributes to normal blood clotting and the maintenance of normal bones. Together, these vitamins offer complementary support for bone health and broader physiological function.
Formulated for adults — including those over 75 years of age — Ostrovit Vitamin D3 4000 + K2 provides a straightforward, high-potency option for those looking to maintain adequate intake of both vitamins, particularly during periods of limited sun exposure or increased nutritional need. One pack contains 100 tablets, representing a full 100-day supply at the recommended daily serving.
Nutrition Facts
| Nutrient | Per serving (1 tablet) |
|---|---|
| Vitamin K (as menaquinone-7 MK-7) | 100 µg (133% NRV) |
| Vitamin D (as cholecalciferol) | 100 µg / 4000 IU (2000% NRV) |
Ingredients
Bulking agent: microcrystalline cellulose; starch, cholecalciferol (vit. D), menaquinone-7 MK-7 (vit. K) from Bacillus subtilis natto, anticaking agents: magnesium salts of fatty acids, silicon dioxide.
Usage & Dosage
Take 1 serving (1 tablet) daily with a meal. The product is suitable for persons over 75 years of age. It is advisable to perform a 25-(OH)D blood test and consult the doctor or pharmacist before use.
Warnings
Do not exceed the recommended daily dosage. Dietary supplement should not be used as a substitute (replacement) for a varied diet. Balanced diet and a healthy lifestyle are recommended. Do not consume if you are allergic to any of the product ingredients. Product should not be used by children, pregnant women, nursing mothers and people taking anticoagulants containing vitamin K antagonists (e.g. warfarin and acenocoumarol). Keep out of reach of small children.
Allergen Information
Manufactured in a facility that uses ingredients derived from milk (including lactose), soybeans, peanuts, other nuts, sesame seeds, cereals containing gluten, eggs, crustaceans, fish.
Storage
Store at 15–25°C in a closed container, in a dry place.






