An excessively high concentration of vitamin D3 in the blood causes the calcium formed to be deposited in the blood vessels to a much greater extent. This can lead to calcification in the arteries and veins, which contributes to an increased risk of heart attacks and strokes.
Additional intake of vitamin K2 can prevent this calcification, since the micronutrient is primarily responsible for the transportation of calcium into the bones. Due to these synergetic aspects, a combined intake of both vital substances is therefore recommended.