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Последните проучвания показват, че витамин Д е от голямо значение за мускулните размери и сила Ние в Bodytime препоръчваме да консумирате 2000 – 5000 международни единици (IU) витамин Д на ден Вие навярно знаете, че витамин Д е изключително важна добавка към хранителния ви режим, не само заради вашето здраве, но и за мускулната маса и сила, както и за изгарянето на телесните мазнини. Точно така, витамин Д може да ви помогне да станете по – силни, да увеличите синтеза на мускулен протеин, да намалите телесните мазнини и да повишите нивата на тестостерон. Bodytime препоръчва приемането на 2000 – 5000 международни единици (IU) витамин Д на ден, но не всеки витамин Д ще свърши работа. Трябва да се уверите, че консумирате витамин Д3, познат като холекалциферол. В едно неотдавнашно проучване от университета Крайтън (Омаха, щата Небраска), субектите приемат приблизително 7000 IU витамин Д2 или витамин Д3 на ден в продължение на 12 седмици. През 2011 – та година, учените съобщават в издание на списание The Journal of Clinical Endocrinology & Metabolism , че Д3 е около 90% по – мощен при повишаване нивото на 25 – хидроксивитамин Д, формата на съхранение на витамин Д в организма, отколкото витамин Д2. Витамин Д3 увеличава нивата на витамини в тялото 3 пъти повече, отколкото Д2.
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Archive for July, 2011 Seattle Residents May Be More Susceptible to Seasonal Depression The epic winters and rains experienced by Seattle are known to cause depression in a large percent of the population. Why? Research has shown that sesonal depression, also known as Seasonal Affective Disorder, or SAD, is linked to a lack of a Vitamin D3. Vitamin D3 – cholecalciferol – is the form of Vitamin D that is obtained through human exposure to direct sunlight. It is considered to be superior to other forms of Vitamin D such as ergocalciferol, which is better known as Vitamin D2. Research has shown that people in cold, rainy climates, are more susceptible to Vitamin D Deficiency, which has been scientifically linked to Seasonal Affective Disorder. This means that people who live in places like Seattle, Washington, where the climate is often rainy and generally cold, are more likely to suffer from SAD, which is a type of seasonal depression that occurs primarily during the winter months. Take this passage from an earlier post about Vitamin D Deficiency appearing on this site: A scientific link between low Vitamin D3 levels and depression has been established following several recent studies confirming the relationship. According to one such study by scientists at Georgia State University: “The likelihood of having depression in persons with vitamin D deficiency is significantly higher compared to those with vitamin D sufficiency. Early diagnosis and intervention are paramount because coexistence of vitamin D deficiency and depression has serious negative consequences on health.” (Source) There has been a surge of interest the medical research community concerning Vitamin D3. Dr. Michael Holick of Boston University School, one of the world’s leading experts on the topic, has been quoted as saying “You’re more likely to live longer and you’re less likely to die of serious chronic disease if you have adequate vitamin D on board. It may well be the most important nutrient of the decade.” There is also current research being conducted on Vitamin D3 at the Mayo Clinic, the Fred Hutchinson Cancer Research Center and The U.S. Institute of Medicine to name a few. Existing research has already linked Vitamin D Deficiency to at least 32 different diseases, illnesses and various other health ailments. People who live in northern climates that are cold and/or rainy have limited opportunities to obtain Vitamin D from sunlight. It is recommended that these individuals in particular take high-quality Vitamin D3 Supplements in order to prevent Vitamin D Deficiency. Dr. Marc Sorenson on Vitamin D Deficiency, Depression and Seasonal Affective Disorder: Vitamin D May Help Protect Teeth, Gums Guest Post By: David Munson There has always been evidence that ingesting certain vitamins and minerals in sufficient amounts can have many positive health benefits. Vitamin D specifically can play a significant role in preventing colon cancer, diabetes, and even help to relieve depression. Many studies are performed to find out what types of infections and diseases can be helped with vitamin D. The most recent study, performed by Gill Diamond of the New Jersey Dental School in Newark, has produced a significant finding and sparked debate about the usefulness of vitamin D. The study found that vitamin D can help fight bacterial infections that attack the gums which can lead to gingivitis and tooth loss. These findings were supported by an earlier study that found that vitamin D can cause the lungs to produce a natural antibiotic that can actually kill harmful bacteria. This latest study also found that vitamin D is involved in expressing some genes that were not believed to be part of the vitamin D pathway, but now may help in fighting infection. This research could develop specific therapies using vitamin D. It was also discovered that gum cells can activate inactive forms of vitamin D, and according to Gill Diamond, “This means that we may even be able to use vitamin D therapy topically, if that proves true.” This has the ability to create special drugs and ointments that can be applied to the gums and fight gingivitis which affects 75% of the one-third adults that suffer from untreated tooth decay. Gingivitis is inflammation or infection of the gums. Vitamin D is important to the health of people and must be given in correct dosages. A debate lies in what the proper dosage amounts are. The United States Food and Nutrition Board has established that children and adults age 70 and below need 600 IU of vitamin D while the elderly, age 70 and above, need 800 IU. While the Vitamin D Council, without proper exposure to sunlight, recommends 1,000 IU for children over 1 year and 5,000 IU for healthy adolescents and adults. People with illnesses may require more. There is also something of a debate being had over which form of vitamin D offers the most health benefits. For years, supplement manufacturers preferred a form of the nutrient called ergocalciferol, or vitamin D2. However, in the past decade, scientists and health practitioners are finding that vitamin D3 is a superior form of the nutrient. This tends to be the prevailing viewpoint among those in the know. The reason for this is that vitamin D3, also known as cholecalciferol, is the natural form of the vitamin obtained from the sun, and is more easily accessible for use by the human body than the synthetic, man-made D2. We here at the Vitamin D3 Blog strongly recommend that anyone considering vitamin D supplements consider purchasing vitamin D3 supplements as opposed to those containing D2. Vitamin D is one the most well-known and yet still underrated of all the vitamins. The health benefits are just starting to be understood by science, and the nutrient can easily be obtained through proper amounts of sunlight or in supplement form. It also seems that science hasn’t even scratched the surface of what vitamin D can achieve in help to the body, but according to this most recent study, we know that it can provide a beneficial step for healthy gums and teeth. Not Every Doctor is an Expert in Vitamin D3 Among the nation’s leading experts in the subject of clinical nutrition and in particular vitamin D benefits is a primary care Nurse Practitioner from Louisiana named Pamela Egan. It was Nurse Practitioner Egan who was the very first media figure in the entire country and indeed the world to distinguish between the two different forms of vitamin D that are commonly sold as supplements. The two are D2 and D3, respectively. NP Egan, who is a world-renowned health columnist, was writing about the hands-down superiority of D3 relative to D2 a full four years before the terms D2 or D3 were even mentioned by a writer other than Pamela Egan in an actual print or broadcast media publication. Mrs. Egan’s original article on the topic of vitamin D3 and the potential health ramifications that coincide with being deficient in the nutrient is still among the very first articles to appear in search results when someone queries the term “vitamin d3″ (with or without quotation marks). There is a reason for this. Even though several years have passed since the article was originally published, there are few if any health professionals in the United States and the world who have a better or more fundamental understanding of the subject and the intricacies involved with how it all works. For example, a medical doctor named Susan Hill published an article about vitamin D in late May of this year (2011) for the Wheaton Franciscan Medical Group. Dr. Hill obviously hadn’t inconvenienced herself with research before writing the article, rehashing the standard lines that seem to appear in every news story about the topic. Dr. Hill listed four benefits of vitamin D: calcium absorption, bone strength, muscle strength and balance. Interestingly enough, while she didn’t find it necessary to include a sentence or two about the other 32 or so diseases that have been found to occur in dramatically increased proportions in the presence of a vitamin D deficiency, she did make a point of citing decades-old information that has been inaccurate for at least five or six years now. She incorrectly stated that research had not conclusively established a link between healthy vitamin D levels and a reduced risk of cancer and heart disease (see note at bottom of post). She also incorrectly stated that there is a lack of scientific evidence linking vitamin D deficiency to winter depression. Last but not least, she engaged in a bit of unnecessary fear mongering by asserting that people who reside in areas with sunny climates and who also supplement with vitamin D are at risk of getting “too much” of the nutrient, a real condition known as vitamin D toxicity. While technically, this statement is not 100% inaccurate, she should have pointed out that in order for this to occur, a person would have to be either hypersensitive to the vitamin; take far more vitamin D supplements than directed by a physician or the instructions on the bottle; or ingest a contaminated supplement containing several times more of the active ingredient than is listed on the label. While the above makes up all of the factually inaccurate statements made by Dr. Susan Hill in her May article for the Wheaton Group, she did make one onerous omission that in light of the factual inaccuracies, should come as no surprise to those qualified to write on the subject. Throughout the entire article, she failed to make any mention of the fact that there are two different forms of vitamin D that are sold as supplements in the United States, and that only one of those forms offers any meaningful health benefits to the human body. For anyone not already familiar with the two forms of vitamin D, they are D2 (also known as ergocalciferol) and D3 (also known as cholecalciferol), respectively. Vitamin D3 is the form of the nutrient absorbed through sunlight and processed for use by the body. D2 is a synthetic chemical made largely of plant materials. The two forms of vitamin D were absolutely not created equal. D2 is technically a form of vitamin D, but offers very little in terms of benefits to the human body due to the fact that it is lacking in bioavailability, or usability by the human body. D3 on the other hand is extremely bioavailable, and the body benefits substantially from both exposure of the skin to sunlight as well as from vitamin D3 supplements. While the remainder of this article is largely a matter of opinion (note that it is being disclaimed as such), this author highly recommends that consumers who decide to buy vitamin D supplements not only go with D3 over D2, but also that they go with a very high-quality brand of D3. Vitamins, like anything else, are subject to the standards and quality control measures in place at the time and place of manufacture, and some brands are made to a higher standard than some others. How big a difference it makes is anybody’s guess, but this author gets the highest quality available for purchase when he buys D3 supplements. The Facts About Vitamin D3, Cancer and Heart Disease: “A study that appeared in the American Journal of Clinical Nutrition conclusively established the preventive benefits of Vitamin D3 with regard to various forms of cancer, heart disease and numerous others ailments.” Source: http://www.ajcn.org/content/79/3/362.abstract