1000 IU of sunshine vitamin per capsule, With the premium quality of K2Vital, vitamin K2 MK-7. Provides magnesium, an important cofactor for activating vitamin D.   Given that the human body is theoretically capable of producing enough vitamin D per day, it is not possible to itself, vitamin D is not really a vitamin, but a hormone. For to produce vitamin D, the body needs both the precursor cholesterol and UV-B radiation. from the sun, and this is where it becomes difficult for most people: We spend most of our time indoors. When we leave the house, we cover most of our vitamin D-producing skin with clothing. During the summer, we wear sunscreen to protect us from the potentially damaging effects of the sun, and thus we inhibit the synthesis of vitamin D! Apart from that, both our age and our type of The skin has a major influence on our vitamin D production. In most parts of Europe, the angle at which the sun reaches the Earth is too low, which means insufficient UV-B exposure for synthesis. of vitamin D. A cloudy sky also prevents UV-B radiation, and foodstuffs Vitamin D-rich foods are rare so getting vitamin D through food is hardly ever a problem. is possible and its implementation is recommended. Vitamin D contributes to the maintenance of normal bones and teeth, to normal bone and tooth function, and to the maintenance of a healthy immune system. normal muscle and normal immune function. Thus, a deficiency of vitamin D can lead to disturbances in bone metabolism and diseases such as rickets (in children) or osteomalacia (in adults). In terms of its effects on the innate and adaptive immune system, vitamin D plays a key role in the immune system. an important role in the differentiation (maturation) of many immune cells different types of cells, such as monocytes, macrophages and lymphocytes (e.g. B-cells and T-cells). At WEIDER, our mission is to provide you with the best nutritional supplements so that you can you can perform at your best, live a healthy life and achieve your personal goals. With more of 85 years of experience in this industry, we have understood the importance of using only the highest quality and trusted ingredients in all our products.