A member of the fat-soluble group of nutrients, Vitamin D is a vital component in the function of many internal organs and so is very important to your overall health. Unfortunately, Vitamin D does not occur naturally in very many foods, and in the ones it does, it is not in great abundance.
Therefore, you must carefully plan how to get your intake each day.
The recommended intake of Vitamin D each day is 5 micrograms per day until the age of 50, at which point it doubles to 10 micrograms. After the age of 70, you should take no less than 15 micrograms per day.
The reason for the increase is that Vitamin D helps to calcify your bones, which is needed as you get older, since bones tend to get brittle with age and can break much easier than in your youth.
To make sure you get this much of the nutrient, you should try to get out into the sunlight- this helps produce the substance naturally in your body. But you must also ingest some through food, so make sure things like your bread and milk are fortified to include it. You can also take it in pill form daily; just make sure you get the recommended amount for your age.
Besides bone growth it is also vital to take this nutrient for your immune system. It can help immunosuppression and also can aid in preventing tumors from growing.
Should you develop tumors or cancer that produces tumors, this nutrient can be vital in helping your treatment and chances for survival.