Natural Factors Vitamin D3 & K2 1000 IU + 120 mcg, 60 Softgels

What is the D3 and K2 vitamin combination?

Vitamin D3 (cholecalciferol) and vitamin K2 (menaquinone) are two fat-soluble nutrients that work synergistically to optimize bone and cardiovascular health. While D3 facilitates the absorption of calcium and phosphorus, K2 directs that calcium to the bones and teeth, preventing its accumulation in soft tissues. This combination is especially valued by those seeking comprehensive support for the skeletal and vascular systems.

Why combine vitamin D3 and K2?

Taking vitamin D3 alone increases calcium absorption, but without enough K2, that calcium can be deposited in the arteries instead of in the bones. Vitamin K2 activates proteins like osteocalcin, which fixes calcium in the bone matrix, and MGP (matrix Gla protein), which prevents arterial calcification. Therefore, the D3+K2 combination is more complete than each nutrient separately.

Health benefits

According to the European Food Safety Authority (EFSA), vitamin D contributes to the normal absorption and utilization of calcium and phosphorus, to the maintenance of normal bones, and to the normal functioning of the immune system. For its part, vitamin K contributes to normal blood clotting and the maintenance of normal bones.

This combination also helps maintain strong teeth and healthy muscle function, always within the context of a balanced diet.

How to choose the best supplement?

When selecting a D3 and K2 supplement, it is important to pay attention to the form of K2. Menaquinone-7 (MK-7) has a longer half-life than MK-4, allowing for once-daily dosing and sustained release. Natural Factors uses high-quality MK-7. In addition, the product is third-party certified and tested for more than 800 contaminants, including GMOs, by mass spectrometry, which guarantees its purity and potency.

Recommended dosage

The suggested dose is one (1) softgel capsule daily, preferably with a meal containing fat to improve absorption. Each capsule provides 1000 IU (25 mcg) of vitamin D3 and 120 mcg of vitamin K2 (as menaquinone-7). Do not exceed the recommended daily dose.

Who should take it?

This supplement is intended for adults who wish to supplement their intake of vitamin D and K, especially if they have limited sun exposure, follow a diet low in these nutrients, or seek additional support for bone and cardiovascular health. It is always advisable to consult a healthcare professional before starting any supplementation.

Possible side effects and precautions

In general, the D3 and K2 combination is well tolerated at recommended doses. However, people taking anticoagulants (such as warfarin) should consult their doctor before using K2 supplements, as this vitamin influences clotting.

Legal warning

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.