Vitamin K and Its Balance in the Body: Natural Sources and Supplementation Use

The Effects of Vitamins K1 and K2 on Clotting and General Health

Vitamin K, one of the fundamental elements that manage the body's clotting mechanism, undertakes a vital task by being stored in the liver, especially in its K1 form. If there is a deficiency of vitamin K1 in the liver, this can lead to severe bleeding, difficulty in closing cuts, and even internal organ or brain hemorrhages. This system, which works by activating protrombin proteins in the liver, ensures the balance of blood clotting.

The use of high-dose D3-K2 vitamin preparations, which have become popular recently, can bring about clotting risks. Routine daily use of these supplements, especially in individuals over 40, should be carefully evaluated as it can increase the risk of embolism and clotting. Vitamin K, unlike other chemicals in the body, is not excreted immediately after performing its function; it is recycled from broken-down products and reintroduced into the system. Due to this cycle, excessive supplementation can lead to accumulation in the body and predispose to unwanted clotting events.

In fact, vitamin K needs can be easily met with a healthy and balanced diet. A salad plate consisting of green vegetables such as lettuce, cress, arugula, and spring onions, with olive oil added, is a rich source of vitamin K1. Fermented or animal products like yogurt, cheese, and eggs, added alongside, provide vitamin K2 (menaquinone) support. While plant-based K1 vitamins are formed through photosynthesis in chlorophyll, this vitamin group, with its basic unit phylloquinone, is fat-soluble and absorbed by the body.

Vitamin K obtained through food passes from the stomach to the small intestine, where it encounters bile. It is broken down with fat molecules and transported through chylomicrons. While vitamin K1 goes directly to the liver to manage clotting processes, vitamin K2 is associated with bone, vascular, and muscle health. Both forms help in clotting within the system.

The balance of vitamin K is even more crucial for individuals using anticoagulant medications due to conditions like heart problems or atrial fibrillation. First-generation anticoagulants thin the blood by inhibiting the vitamin K cycle; second-generation drugs act through other factors without interfering with this cycle. Taking uncontrolled vitamin K supplements while on anticoagulants means trying to both prevent and increase clotting, which creates a contradictory situation.

Vitamin K deficiency is not a common condition in individuals with regular diets. However, for patients at increased risk of bleeding after surgery, high-dose applications under medical supervision can yield successful results. The important thing is to not expose the body to the risk of embolism when using supplements like D3, which aids calcium absorption, and K2, which helps deposit calcium in the bone. The fundamental principle in health and life is to not harm one part while improving another, and to see the whole in balance.