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21st Century Vitamin D3 125 mcg plus K2 100 mcg (120 capsules) combines cholecalciferol with menaquinone-7 (MK-7), a form of vitamin K2. This supplement is highly dosed and developed for adults. Each jar contains 120 capsules, making it last a long time. 21st Century is known for its quality controls and reliable supplements.
Vitamin K1 (phylloquinone) is mainly found in green leafy vegetables. Vitamin K2 (menaquinone) is found in animal products and fermented foods. K2 also consists of different forms, such as MK-4 and MK-7, which differ in structure.
With daily intake, this supplement is only suitable for short-term use. It allows you to quickly administer a large amount of vitamin D without having to take multiple capsules. Consult an expert for individual advice.
For most people, a supplement of 25 mcg (1000 IU) to 75 mcg is sufficient. In some cases, however, a higher dose of vitamin D is desired. Ask your doctor or dietitian what a suitable and responsible vitamin D supplement is for you.
Fat-soluble vitamins are often taken with a meal that contains fats, because this aligns with the way these vitamins are absorbed in combination with food.
Due to the use of a gelatin capsule, this product is not suitable for vegetarians.
| Composition per serving (1 capsule) | Amount | RI* |
|---|---|---|
| Vitamin D3 (as cholecalciferol) | 125 mcg | - |
| Vitamin K2 (as menaquinone-7) | 100 µg | 133.33% |
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