The term Vitamin d 400 iu is what the medical practitioners refer to as the natural vitamin d. This is one of the few elemental nutrients needed by the body and is provided naturally in a sunny environment. The sun acts as a catalyst and causes the skin to begin formation of vitamin d. this makes it one of the most unique vitamins among the fat-soluble vitamins since it is the only product not created from internal metabolic processes or synthesis.

You would think that because Mother Nature has an abundant supply of sun light that there will be no cases of vitamin d deficiency. Most persons avoid the sun for reasons such as skin burns, developing rashes, to just simply not being able to due to working conditions. In most workplaces there is limited time to move about in the sun. People living in high experience several months of sun’s absence that their equatorial counterparts. Due to this reason there are numerous cases of vitamin d deficiency in both adults and children.

Extraction of vitamin d from ingested foods takes place in the intestines. The sun synthesized vitamin d is formed just on the skin and taken into the blood stream. Even though it is advisable to take plenty of time sun bathing, the process may have negative consequences. Too much sun can lead to sun burn which in turn will make the subsequent unbearable due to pain and dry or cracked skin. Also tans can develop whereby the skin loses its complexion. To avoid these, exposure should be as limited as possible. Ten minutes of exposure is considerately enough for a healthy skin to synthesis Vitamin d 400 iu required for a daily intake.

Vitamin d is significant to the body in that it strengthend the skeletal structure by improving assimilation of phosphates and calcium. It also boosts a person immune system to prevent ailments such as arthritis and multiple sclerosis. Osteoporosis is a medical condition where the bone is reabsorbed. This often happens when there is calcium lacking in food or there is little or no vitamins to absorb calcium present in foods.

Multi-mineral and multivitamin supplements can be used to increase the presence of calcium and vitamin d in food rations. A prescribed amount of Vitamin d 400 iu should be taken per day which is about 10 mg. in the case of severe malnutrition then other higher doses can be implemented.