The base for a good development of solid bones and a clean set of teeth is made when children are growing. Vitamin D is very important for absorbing calcium from food. The body makes a part of the necessary vitamin D itself in the skin, under the influence of sunlight. Furthermore, vitamin D can be found mostly in low-fat margarine, margarine and baking and roasting products, because vitamin D is added to these products. Fatty fish contains a lot of vitamin D naturally. Meat and whole milk products also supply some vitamin D. Because the daily diet and skin do not provide enough vitamin D for children until four years old, it is advised to give 10 micrograms of vitamin D extra every day. From the eighth day after the birth, you will give your child this yourself.