They form an absolutely perfect synergy. Vitamin D3 ensures that the body can effectively absorb calcium from your diet into the blood. Vitamin K2 then acts as a "traffic cop," safely directing this calcium exactly where it is needed—into the bones and teeth.
If you take Vitamin D3 alone in high doses, the calcium level in your blood rises. Without Vitamin K2, however, there is a risk that this free calcium will begin to deposit in soft tissues and blood vessels (so-called calcification), which can lead to serious cardiovascular problems in the long run.
Always look for supplements containing Vitamin K2 in the form of MK-7 (Menaquinone-7). This premium form has a much longer half-life in the human body (lasting up to 72 hours) and is many times more absorbable than the cheaper, synthetic MK-4 form.
Since both vitamins D and K are fat-soluble, for maximum absorption, you must always take them with a meal that contains fat (e.g., eggs, nuts, avocado, meat). Swallowing these capsules on an empty stomach with just a glass of water is a waste of money.
Hard strength training places huge demands on the skeletal system. D3+K2 ensures maximum bone strength and density, which is crucial for preventing injuries and stress fractures. Moreover, Vitamin D3 directly supports muscle function and optimal testosterone production.
