Land affected or burdened by an easement is called a servient estate, while the land or person benefited by the easement is known as the dominant estate.. If the easement benefits a particular piece of land, it is said to be appurtenant to the land.
Vitamin D obtained from sun exposure, food, and supplements is biologically inert and must undergo two hydroxylations in the body for activation. The first occurs in the liver and converts vitamin D to 25-hydroxyvitamin D [25(OH)D], also known as calcidiol.
Our bodies make vitamin D after we are exposed to sunlight. Natural sources of vitamin D include oily fish, such as salmon, mackerel, sardines and tuna, and fish liver oils, eggs and beef liver.Vitamin D is often added to foods, including milk, yoghurt, fruit juice, margarine, bread, breakfast cereals and pastries.ur bodies make vitamin D after we are exposed to sunlight. Natural sources of vitamin D include oily fish, such as salmon, mackerel, sardines and tuna, and fish liver oils, eggs and beef liver.