• People most likely to suffering of lack of vitamin D are the elder, people who need to avoid sunlight due to skin conditions, dark-skin people, and people unable to absorb the vitamin D for various reasons.

• It is recommended daily exposure of at least parts of the body to sunlight for the synthesis of vitamin D. It is recommended sunbath between 10 AM and 2 PM in summer should be avoided.

• It is recommended 400 IU of vitamin D supplementation a day.

Vitamin D

Vitamin D is composed of two molecules; Cholecalciferol, known as Vitamin D3, and Ergocalciferol which is also referred to as Vitamin D2. Cholecalciferol is synthesized by UV light in the skin. Ergocalciferol is the form of Vitamin D extracted from plants which have been exposed to and absorb UV light.

Vitamin D is an important part of a healthy diet to promote proper bone function and strength. Working in part with calcium, Vitamin D provides bones with the nutrients needed to maintain strong and healthy bones, preventing fractures, breaks and bone loss.

Once ingested Vitamin D is metabolized by the liver, and then hydroxylated in the kidneys to produce the most active form, to facilitate the absorption of phosphate and calcium, mineralization of the skeleton and extracellular homeostasis with the help of parathyroid hormones.

Recommended Dosage of Vitamin D

The majority of Vitamin D retained by adults is from sunlight; however it is important to note that Vitamin D consumption should not be based only on sunlight. Adults should consume about 400 IU daily. Sunlight exposure for an average of 15 minutes yields absorption of 1/3 of the minimal erythemal dose.

While sunblock is important for prolonged sun exposure to prevent damage to skin, direct short exposure of the hands, arms and face to the sun while it is not intense is recommended for about 15 minutes. Sunblock prevents the penetration of UVA and UVB rays from the sun; UV rays are the necessary component for Vitamin D synthesis. During hotter months, it is advised to avoid direct sun exposure without sun block between 10AM and 2AM to prevent risks of serious skin damage.

Vitamin D is also found in several foods. Listed from highest to lowest IU value, they are: salmon, mackerel, tuna fish, fortified milk, fortified margarine, egg yolk and beef liver. Pure cod liver oil supplements are also a good source of Vitamin D, yielding a high IU value for a small amount. Since most adults consume less than 100 IU daily from diet, supplemental forms of Vitamin D are recommended, especially for those who do not receive proper sun exposure.

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The recommended intake by the FDA is:

Vitamin D intake – Daily intake

Age / IU / mcg

0 – 50 / 200 / 5

51 – 70 / 400 / 10

71 + / 600 / 15

Groups at risk

Certain adults are more at risk than others. Generally the elderly are most susceptible to more serious Vitamin D deficiencies. This group usually does not receive as much sun exposure or consume as many foods with Vitamin D. Supplements are very highly recommended for the elderly. Hospital patients, especially those with hip fractures are also more susceptible to deficiencies of Vitamin D. Women who have a very dark skin tone are also at a very high risk; if the woman is usually veiled, this factor increases the risk further.

Vitamin D deficiency

Vitamin D deficiencies are classified in three different forms: mild, moderate and severe. Each deficiency is rated on a scale level of 25-OHD.

Mild vitamin D deficiency ranges between 25-50 nmol/L and result in the increase of secretions of parathyroid hormones and higher bone turnover.

Moderate vitamin deficiency ranges between 12.5-25 nmol/L and results in higher bone turnover and reduced density; usually a higher risk of hip fracture is associated with moderate deficiency as well.

Severe vitamin D deficiency rank below 12.5 nmol/L; results of severe deficiency are osteomalacia. Persons with osteomalacia experience pain in muscles and bones, along with frequent and severe fractures.

Toxicity

Toxicity is caused by excess ingestion of vitamin D supplementation not by exposure to the sunlight. There are no evidences of toxicity by doses lower than 4 000 IU daily.

Vitamin D and Prostate Cancer

Prostate cancer is one of the major cause of deaths. Every year about 220,000 men are diagnosed with prostate cancer in the USA. Doctors may sustain that vitamin D is not beneficial for cancer of the prostate until further studies proves its help.

Following that approach two things can happen: The patient may die while the conclusions of such studies are still pending or it can miss the point. Men diagnosed with cancer in the prostate cannot afford to be vitamin D deficient and neither should do their doctors although vitamin D should not be considered as the only treatment of prostate cancer. Evidences suggest that the proper intake of vitamin D3 may help fighting prostate cancer.

Vitamin D Acknowledgments

A paper from Feldman and the Stanford University states: “Based on these findings, we postulate that vitamin D may have protective actions on the development and/or progression of prostate cancer…We further hypothesize that vitamin D supplementation may have beneficial effects on retarding the development and/or progression of prostate cancer.” This is the first evidence of the usefulness of the Cholecalciferol in the prevention and treating of prostate cancer. Cholecalciferol, Calcidiol and Calcitriol.

Several scientific studies have been conducted since 1998 by American universities on vitamin D and its role in the prevention and treatment of prostate cancer. It was found that the vitamin D raises the level of plasma calcidiol. The Calcitriol is made by the kidneys from the calcidiol which has been considered as beneficial for the treatment of prostate cancer. The easiest way to raise calcidiol levels is through supplementation of Cholecalciferol.

Further studies show that calcidiol is just as effective as calcitriol in inhibiting prostate cancer growth.

Calcitriol Breakdown Reduced by Soy Isoflavonoids

In 2003, two studies from at the University of Vienna Medical School confirmed that the isoflavonoids in soy dramatically reduce the breakdown of calcitriol in prostate cancer cells. In fact, they found that such products profoundly inhibit the enzyme that metabolizes calcitriol, reducing its activity to almost zero. This again raised the possibility that such compounds could be combined with vitamin D to treat prostate cancer. A study from the University of Toronto presented by Woo, Vieth, in 2004 showed that 2,000 IU of simple vitamin D3 (Cholecalciferol) either reduced or prevented further increases in PSA in the majority of men with advancing prostate cancer.

Vitamin D supplementation

There are a few supplements of concentrated form of Vitamin D available used to treat Vitamin D deficiencies. Most supplements contain the highest level of 1,000 IU. Depending on the severity of deficiency, it may be required supplementation between 3,000 and 5,000 IU daily for adequate replacement therapy.

Other supplements containing Vitamin D address specific issues but depending on the formulation they can also be used for general use or other. Some formulations for helping prostate health contain 1,600 IU of Vitamin D3 in one single dose. Prostate-C is considered one of the best products available and can be found online.

Find More Vitamin C Articles

According to researchers at the Loyola University, Vitamin D is definitely proving to be the “it” nutrient.1 Lack of Vitamin D has been associated with autoimmunity, fractures, cardiovascular disorders, as well as insulin sensitivity and secretion. Among a host of positive benefits, a healthy intake of Vitamin D is associated with supporting bone health, periodontal health, and mental health.

A recent research study suggests that Vitamin D deficiency may be associated with a significant increase in lung transplant rejection. A study investigator at the Loyola University Osteoporosis and Metabolic Bone Disease Center noted that about 77 percent of lung transplant patients are Vitamin D deficient. Researchers believe that Vitamin D is critical for positive lung transplant replacements and optimal levels are needed to help the immune system tolerate the new organ.2

Another new study conducted at the Stanford University Medical Center suggests that prime targets for Vitamin D deficiency are those who protect their skin daily from the sun because of a genetic disposition to certain chronic skin ailments. There is also an increasing concern of Vitamin D deficiency that may arise from sun protection, a recommendation of dermatologists. Over-protecting the skin from UV damage may result in low levels of Vitamin D leading to harmful affects on health. 3

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Over the past thirty years, scientists have revealed a wide variety of functions that has boosted the benefits of vitamin D prompting the Food and Nutrition Board under the Institute of Medicine to re-evaluate the recommended dietary intake (RDI) of Vitamin D from its current RDI of 200 IUs. Their report “Dietary Reference Intakes for Calcium and Vitamin D” announcing the new RDI for Vitamin D will be released to the public on November 30, 2010.4

Meet Consumer Demand for Vitamin D Supplements with High-Quality Vitamin Manufacturers

As research continues to support the importance of Vitamin D in our diets, more people are choosing to take Vitamin D as a single supplement to increase their daily intake of this “vitamin hormone”. The sale of this vitamin has boosted the vitamin manufacturing industry as well. According to the Nutrition Business Journal, sales of vitamin D in 2009 were up 82 percent from the previous year.5

To help supply this growing need, supplement manufacturing companies can make sure they include a high-quality Vitamin D supplement in their product line. Vitacap Labs, one of the nation’s leading private label vitamin manufacturers, produce superior-quality, Vitamin supplements within a GMP-certified facility that can meet the needs of your target market. In addition, you have the option to mix and match your private label Vitamin supplements with other high-quality products to meet a minimum order quantity of just 96 bottles! Contact a service professional for more information or submit a request for a free Vitamin D private label vitamin manufacturing quote!

References:
Vitamin D Proving to Be the “It” Nutrient, Loyola University Health System, http://www.loyolahealth.org/about-us/newswire/vitamin-d-proving-be-it-nutrient
Vitamin D Deficiency Linked to Lung Transplant Rejection http://www.loyolamedicine.org/News/News_Releases/news_release_detail.cfm?var_news_release_id=973441279
Genetic Predisposition to Certain Cancers May Be Associated with Vitamin D Deficiency, Science Daily, October 20, 2010. http://www.sciencedaily.com/releases/2010/10/101018162934.htm
Dietary Reference Intakes for Calcium and Vitamin D, www.iom.edu/vitamind
U.S. Vitamin Supplement Sales & Sales by Channel: 1995-2009 – Chart 13 Nutrition Business Journal

More Vitamin C Articles

One of the most important vitamins for the body’s vitamin D, which has been classified as vitamin D2 and vitamin D3 .
Both are fat soluble and are naturally in the skin of all vertebrates produced. The production is caused by exposure to UV-B rays, which could be sunlight or from artificial sources. It reduces natural production, a Vitamin D is taken to the requirements of the body’s needs.

Although the amount of vitamin D produced naturally in the skin usually meets the requirements, some foods also contain small amounts of it for the requirement will be fulfilled manually.
Vitamin D is found mainly in dairy products, meat and oily fish. However, the best choice to consume vitamin D to fungi, which have had a good sun exposure to consume. The importance of vitamin D for humans since ancient times and today we see so many nations where commonly consumed foods such as flour, milk and margarine are artificially treated to the vitamin D content known. For individuals who lack sufficient UV light, a Vitamin D would be the best choice available.

Although the vitality of the presence of this substance in the body has always been given importance, it was not until 1913 that vitamin D was inadvertently found that in cod liver oil. First, his health benefits were made available have been confused by vitamin A, but destroys a test of cod liver oil with vitamin A or, if they benefit from it. Hence came the astonishing effect of vitamin D to the limelight.

Normally 5?g of vitamin D is sufficient for one person it is a 1 year old baby or a 70-year-old man are recommended over 70 or 71 years, taking about 10 ug increase. This large volume is usually packaged in a vitamin D supplement from most manufacturers. Therefore, people that are necessary with these additions, do not take more than one capsule per day.
consumption or requirement of this vitamin can vary from region to region according to climatic and environmental conditions and health and lifestyle of the people. In addition to UV light irradiated mushrooms, are some of the most recommended foods that can actually provide vitamin D, eggs, cooked beef and cod liver oil level.

The balance of intake and vitamin D in the body must be considered significant, since they may lack in a number of lead health hazards. Some common problems are encountered due to lack of vitamin D rickets , Osteomalacia , cancer , Parkinson’s disease, multiple sclerosis and Alzheimer’s Disease, along with many others.
Most problems are connected to bones and affect the stability of the bone, so brining traffic problems as fractures and undesirable design Haltungen.Knochenschwund, softening, vomiting, weakness and inefficiency are some of the major effects of lack of vitamin D. Since the entire human body through the skeletal system and thus the bone is supported, it must be maintained made excellent. Every problem in the skeletal system could be devastating for the whole body. Thus, the lack of vitamin D can be neglected in any way.

Because natural production is much better than artificial feeding, you must try, always exposed to UVB light as much as possible and eat food, the balance of vitamin D in the body to help. Only those people who have problems to know, too bright or health issues that prohibit the consumption of eggs , fish and other vitamin D-rich foods, on the vitamin supplement to leave exposed D Of course. Healthy people need to try to produce as much food as possible and easy for a happy and healthy life.