NOW Supplements, Vitamina D-3 y K-2, 1.000 UI/45 mcg, 120 Cápsulas Vegetales

What is the D3 and K2 vitamin combination?

Vitamin D3 (cholecalciferol) and vitamin K2 (menaquinone) are two fat-soluble nutrients that work synergistically to support bone and cardiovascular health. While vitamin D3 facilitates calcium absorption in the intestine, vitamin K2 activates proteins that direct that calcium to the bones and teeth, preventing its deposit in soft tissues such as arteries. This combination is increasingly popular among those seeking a comprehensive approach to bone and circulatory system care.

Health Benefits

According to the European Food Safety Authority (EFSA), vitamin D contributes to the normal absorption and utilization of calcium and phosphorus, as well as to the maintenance of normal bones. Vitamin K contributes to normal blood clotting and the maintenance of normal bones. These claims are authorized by European regulations (Regulation EC No. 1924/2006) and support the use of this supplement as an aid to bone health.

The combination of both vitamins is especially relevant for people with limited sun exposure, restrictive diets, or increased calcium needs.

How to choose the best D3 and K2 supplement?

When selecting a vitamin D3 and K2 supplement, it is important to consider the dosage, the form of vitamin K2, and the quality of the product. This NOW Foods supplement offers 1,000 IU of vitamin D3 and 45 mcg of vitamin K2 per vegetable capsule, an adequate ratio for most adults. NOW Foods uses vitamin K2 in the form of menaquinone, although it does not specify whether it is MK-4 or MK-7; both are effective, but MK-7 has a longer half-life. The product is vegan (plant-based capsules), GMO-free, kosher, and soy-free. In addition, it is GMP (Good Manufacturing Practices) certified and its internal laboratories are ISO/IEC accredited, which ensures proper stability, potency, and formulation.

Recommended dosage

The recommended dosage for adults is one capsule daily, preferably with a meal containing fat to improve the absorption of fat-soluble vitamins. Do not exceed the recommended daily dose. Each bottle contains 120 capsules, enough for four months of continuous use. As always, consult a healthcare professional before starting any supplementation, especially if you are taking anticoagulant medications or have pre-existing medical conditions.

Who should take it?

This supplement is intended for people who wish to support their bone health and ensure adequate levels of vitamin D and K. It is especially useful for those with little sun exposure, older adults, postmenopausal women, people with vegetarian or vegan diets, and those who consume additional calcium. It can also benefit athletes or active individuals looking to maintain strong bones.

Possible side effects and precautions

Vitamins D3 and K2 are generally safe at recommended doses. Vitamin D3 is fat-soluble and can accumulate in the body if consumed in excess, so the indicated dose should not be exceeded. Vitamin K2 has a high safety margin and rarely causes adverse effects. However, people taking anticoagulants (such as warfarin) should consult their doctor before using this product, as vitamin K can interfere with medication. Keep out of reach of young children.

Food supplements should not be used as a substitute for a balanced diet. Do not exceed the recommended daily dose. Keep out of reach of young children.