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Better Health Through Better Vitamin

29th January, 2011 - Posted by health news - No Comments

The D vitamin is the only vitamin that is not acquired from foods that are consumed. Instead, the D vitamin is actually got by daylight on the skin. There has been lots of media coverage about the dangers of getting excess sun but it’s important that the skin is exposed to daylight to obtain the daily recommended allowance of the D vitamin. Actually, the quantity of time that a person has to spend in the sunshine to receive an adequate dose of the D vitamin is extremely little and just a few minutes a day will be acceptable and not have any harmful effects from the quantity of ultra-violet light received.

The most vital function of the D vitamin is to help control how much calcium is soaked up from food. Lots of the calcium is used to build strong teeth and bones but it is also needed to send messages along the nerves and to help muscles, such as the heart muscles, to contract. It is the D vitamin that guarantees that there is always acceptable calcium in the blood to perform these tasks. Other functions that require the D vitamin relate to the immunity mechanism and it is assumed it’s also a contributing factor in reducing the risk of contracting cancer and, particularly, cancer of the bowel.

The alternative of the D vitamin that is formed under the skin is commonly known as vitamin D3, or cholecalciferol. This D vitamin is created when the ultraviolet in the sunlight reacts with a variety of cholesterol that is found under the skin naturally. The D3 is converted into a rather more active kind of the d vitamin in the liver and is then diverted to where it is required the most. Some of the D vitamin remains in the liver and kidneys to help reabsorb the calcium from the blood. The rest of the D vitamin is dispersed to the bones to help them keep their calcium and the intestines to help assimilation of calcium from food.

Although lots of the D vitamin is created through the exposure of the skin to sunlight there are some foods that do contain some of the vitamin naturally. This type of the D vitamin is often known as vitamin D2, or ergocalciferol. This is employed in the same way as the other D vitamins and is the type used to form a lot of D vitamin supplements.

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