Health benefits: Your bones need many nutrients to stay strong throughout your life. Vitamins D and K are extremely important for building bone tissue and, therefore, maintaining good health. So, instead of providing three separate supplements, we've brought these three bone-strengthening nutrients together in this single, scientifically proven formula. Keys to its operation: Some of the most important nutrients for maintaining good bone health are vitamin D and vitamin K. These three nutrients contribute to maintaining good bone health, even in old age. The fact is that as we age, our bones can become more fragile. That's why it makes sense to add a combination of vitamins D and K to your diet to maintain strong, youthful bones. But when you take vitamin D and vitamin K supplements, you're not just boosting your bone health. These nutrients have multiple benefits individually, creating a positive knock-on effect for many aspects of health, including strengthening arterial health (vitamin K) and brain health (vitamin D3). That is, by taking vitamin D and vitamin K supplements, you'll not only be strengthening bone health, but you'll also be getting additional benefits such as strengthening arterial health and cognitive function. In short, it's a win-win situation in many ways. Scientific basis of the product: The vitamin K and vitamin D in this formula have been scientifically researched to meet their optimal dosages. Both together and individually, they offer many different health benefits: Vitamin K1 and vitamin K2 Vitamin K helps inhibit calcium buildup in the arteries while enhancing calcium absorption into the bone matrix [3]. Vitamin K1 is the most common type of vitamin K found in the diet. It comes mostly from green leafy vegetables. But there's a problem: these foods don't absorb vitamin K1 well. Vitamin K2 is found in cheese, eggs, and fermented soybeans. It has been shown to be more bioavailable than K1 and to remain active in the body for much longer. MK-7 in vitamin K2 has been shown to remain available in the body for up to 48 hours. Of course, this formula contains both forms of vitamin K2. Vitamin D3 Several studies have indicated that healthy serum vitamin D levels correspond to better cognitive function [6,7]. Along with vitamin K, vitamin D3 is necessary to promote calcium transport into the bone matrix and maintain strong, healthy bones and teeth [8]. Vitamin D3 also plays a key role in immune function [9]. Another reason why it's a good idea to take vitamin D3 supplements in the winter. In addition, vitamin D promotes a healthy inflammatory response, strengthens cardiovascular health, and benefits endothelial function. It also helps inhibit excess renin levels. Adequate renin levels contribute to maintaining blood pressure already within normal limits [10]. All of this demonstrates that vitamin D3 is an important nutrient for bone and arterial health. This vitamin D3 supplement has been reformulated in cooperation with Life Extension in the United States to comply with European supplementation regulations, providing an optimal dose of vitamin D3 as cholecalciferol with each capsule. Make sure your body gets enough of these three essential nutrients with Vitamins D and K from Sea-Iodine™.