新的研究显示 维生素D可以降低患癌风险达77%
http://www.nbcnews.com/id/19098606/ns/health-cancer/t/vitamin-d-shown-cut-cancer-risk-women/
2007年6月8日，美国加州奥马哈市的一项具有里程碑意义的研究表明，大多数美国人和其他人没有摄取足够的维生素D，这一事实可能会使他们面临罹患癌症的巨大风险。
这项为期四年的随机研究跟踪了1179名来自内布拉斯加州东部农村的健康的绝经后妇女。*参与者服用钙，以及大量的维生素D3，几乎是美国政府推荐的中年成人每日推荐量的三倍，比没有服用维生素的女性的癌症风险降低了60%或更大。
这项研究于2000年至2005年间进行，结果发表在6月8日的《美国临床营养学杂志》网络版上。
“这些发现非常令人兴奋。他们证实了一些维生素D的支持者已经怀疑了一段时间，但到目前为止，还没有通过临床试验证实的观点。主要的研究员查克雷顿医学教授，护理学院Criss/贝鲁特捐赠的主席说。“维生素D是对抗癌症和其他疾病的重要工具。”
参与这项研究的其他Creighton研究人员包括Robert Recker, M.D.;医学博士罗伯特•希尼;Dianne Travers-Gustafson,硕士;还有k·迈克尔·戴维斯博士。
研究参与者在进入Creighton研究之前，都是55岁以上，并且在至少10年的时间里都没有发现已知的癌症。受试者被随机分配，每日服用1,400- 1500毫克的补充钙，加上1,100 IU的维生素D3，或安慰剂。国家卫生研究院资助了这项研究。
在四年的时间里，钙/维生素D3组的女性患癌症的风险比服用安慰剂的组低60%。
在一些女性以未确诊的癌症为研究对象的前提下，研究人员排除了第一年的研究结果，并研究了过去三年的研究结果。当他们这样做的时候，结果就变得更加戏剧化了，钙/维生素D3组的癌症风险降低了77%。
在3年的分析中，服用安慰剂的参与者和服用钙补充剂的参与者之间的癌症发生率没有统计学上的显著差异。
通过这项研究，50名参与者发展了非皮肤癌，包括乳腺癌、结肠癌、肺癌和其他癌症。
Lappe说，还需要进一步的研究来确定Creighton的研究结果是否适用于其他人群，包括男性、各个年龄段的女性以及不同的种族群体。她指出，尽管该研究对所有种族都开放，但所有参与者都是白种人。
越来越多的证据表明，摄入更多的维生素D有助于预防和治疗癌症、高血压、纤维肌痛、糖尿病、多发性硬化症和风湿性关节炎等疾病。
当人们暴露在阳光下时，皮肤会自己制造维生素D3。事实上，在明亮的夏日阳光下，每天只有10-15分钟会产生大量的维生素D，Lappe说。然而，人们需要谨慎，因为太阳紫外线B射线也会导致皮肤癌; 防晒霜能阻断大部分维生素D的生成。
此外，你所居住的纬度和你的祖先也会影响你的身体将阳光转化为维生素D的能力。深色皮肤的人更难制造维生素。居住在37度纬度以北的纬度地区的人——奥马哈(Omaha)靠近第41个纬度——由于太阳的角度，冬天的几个月里无法自然地获得维生素D。专家们普遍认为维生素D的推荐的每日摄取量（RDA）需要大量增加，但是关于维生素D的数量存在争议。维生素D2和维生素D3有两种形式。Creighton的研究人员推荐维生素D3，因为它更活跃，因此对人类更有效。
*研究参与者来自内布拉斯加州的道格拉斯、科尔法克斯、Cuming、Dodge、Saunders、Washington、Sarpy、Burt和Butler。 RDA建议维生素D为200 IU/ D，新生儿~50岁; 400 IU / d,50 - 70年;600 IU/d, 70岁以上。
问自己关于癌症行业的十个问题
Ten questions to ask yourself about the cancer industry
考虑这些问题:
#1:为什么癌症行业拒绝教育人们预防癌症?
#2:如果人们继续为癌症治疗的“探索”捐款，为什么制药公司不承诺“公开”他们的抗癌药物专利，以造福于那些最初资助他们的人?换句话说，为什么人们要为癌症研究捐钱，却要为抗癌药物付费?
#3:为什么整个癌症行业如此强烈地劝阻人们使用阳光照射来显著降低他们的癌症风险?
#4:为什么所有真正好的癌症补充剂、诊所和自然疗法都被禁止、逮捕或跑出了国家?
#5：在过去的三十年里，美国向癌症产业注入了数十亿美元。70年代就保证找到治愈癌症的方法。为什么今天的癌症发病率和20世纪70年代基本相同?
#6:为什么癌症行业继续使用化疗、放疗和其他有毒程序来“杀死肿瘤”，而最新的科学清楚地表明，癌症只是癌症的症状，而不是病因?化疗破坏免疫功能，并对心脏、大脑和肝脏造成永久性损伤……
#7：:世界卫生组织说，70%的癌症通过饮食和生活方式的改变很容易得到预防。这项最新研究表明，阳光和低成本的钙补充剂可以使女性患癌症的风险降低77%。为什么传统医学不接受这种低成本、安全且高效的预防癌症的方法呢?
#8:癌症行业经常攻击抗癌草药、超级食品和补充剂。为什么癌症行业反对抗癌营养?为什么它相信只有人类，而不是大自然，才能制造抗癌药物?
#9:深色皮肤色素会阻止紫外线辐射，这意味着黑皮肤的人需要更多的时间在阳光下，产生与皮肤白皙的人等量的维生素D。不足为奇的是，黑人女性患乳腺癌的几率极高，而黑人男性的前列腺癌发病率也同样高。由白人主导的医疗行业假装对这一切感到“困惑”。为什么传统医学不能简单地告诉黑人维生素D、皮肤色素沉着和癌症的真相?为什么肿瘤学家试图让黑人不了解他们的维生素D缺乏?
#10:为什么营养补充剂制造商告诉真相他们产品的抗癌效果是违法的?花椰菜、大蒜、洋葱和豆芽都具有强大的抗癌功效，比如几十种热带雨林草本植物(如猫爪)、中草药和西药。但FDA威胁和审查任何一家敢于提及其补充剂产品癌症预防的公司。为什么美国食品和药物管理局执行了一项对美国消费者缺乏营养的政策?为什么联邦政府希望人们不知道预防或治疗癌症的方法?
你可能已经知道所有这些问题的答案，因为每个问题的答案都是一样的:企业利润。癌症是非常有利可图的治疗。实质上预防癌症将导致肿瘤医生、制药公司、医院和诊所损失数十亿美元的利润，而这些利润目前是癌症受害者的资金来源。
癌症行业就像一个犯罪团伙，利用虚假信息、恐吓、政治压力和宣传手段来保护自己的权力基础，让公司保持盈利。我的朋友们，这就是为什么这个行业反对利用阳光来预防癌症的原因。天上的免费药?这一想法使癌症行业感到畏缩。你知道，阳光甚至不需要处方，而且它也不可能获得专利。
http://www.nbcnews.com/id/19098606/ns/health-cancer/t/vitamin-d-shown-cut-cancer-risk-women/
New research shows vitamin D slashes risk of cancers by 77 percent; cancer industry refuses to support cancer prevention
From; http://www.newstarget.com/021892.html
Friday, June 08, 2007 by: Mike Adams
Exciting new research conducted at the Creighton University School of Medicine in Nebraska has revealed that supplementing with vitamin D and calcium can reduce your risk of cancer by an astonishing 77 percent. This includes breast cancer, colon cancer, skin cancer and other forms of cancer. This research provides strong new evidence that vitamin D is the single most effective medicine against cancer, far outpacing the benefits of any cancer drug known to modern science.
The study involved 1,179 healthy women from rural Nebraska. One group of women was given calcium (around 1500 mg daily) and vitamin D (1100 IU daily) while another group was given placebo. Over four year, the group receiving the calcium and vitamin D supplements showed a 60 percent decrease in cancers. Considering just the last three years of the study reveals an impressive 77 percent reduction in cancer due to supplementation. (The full press release of this study is included below. It provides more details about the findings.)
Note that these astonishing effects were achieved on what many nutritionists consider to be a low dose of vitamin D. Exposure to sunlight, which creates even more vitamin D in the body, was not tested or considered, and the quality of the calcium supplements was likely not as high as it could have been (it was probably calcium carbonate and not high-grade calcium malate, aspartate or similar forms). What does all this mean? It means that if you take high-quality calcium supplements and get lots of natural sunlight exposure or take premium vitamin D supplements (such as those made from fish oil), you could easily have a greater reduction than the 77 percent reduction recorded in this study.Ten questions to ask yourself about the cancer industry
Consider these questions:
#1: Why does the cancer industry refuse to educate people about cancer prevention?
#2: If people keep donating money for the "search" for a cancer cure, why won't drug companies pledge to "open source" their patents on cancer drugs to benefit the people whose donations funded them in the first place? In other words, why do people donate money for cancer research but then get charged for cancer drugs?
#3: Why does the entire cancer industry so strongly dissuade people from using sunlight exposure to dramatically reduce their cancer risk? (Hint: Follow the money to the sunscreen industry...)
#4: Why have all the really good cancer supplements, clinics and naturopaths been banned, arrested or run out of the country? (Look up the FDA's oppression of Lane Labs over MGN-3 for a fascinating review of this...)
#5: The U.S. has poured billions of dollars into the cancer industry over the last three decades. Cancer cures were promised in the 1970's. Why are cancer rates still essentially the same today as they were in the 1970's?
#6: Why does the cancer industry continue to use chemotherapy, radiation and other toxic procedures to "kill tumors" when the latest science clearly shows that cancer tumors are only the symptoms, not the cause, of cancer? Chemotherapy destroys immune function and causes permanent damage to the heart, brain and liver...
#7: The World Health Organization says that 70% of all cancers are easily preventable through dietary and lifestyle changes. This latest research shows that sunlight and low-cost calcium supplements can slash cancer risk by 77% in women. Why won't conventional medicine embrace this low-cost, safe and highly effective method for preventing cancer?
#8: The cancer industry routinely attacks anti-cancer herbs, superfoods and supplements. Why is the cancer industry opposed to anti-cancer nutrition? Why does it believe that only man, not nature, can manufacture anti-cancer medicines?
#9: Dark skin pigmentation blocks ultraviolet radiation, meaning that people with black skin need far more time under the sun to generate the same amount of vitamin D as someone with white skin. Not surprisingly, black women suffer extremely high rates of breast cancer while black men show similarly high levels of prostate cancer. The white-dominated medical industry pretends to be "mystified" by all this. Why won't conventional medicine simple tell black people the truth about vitamin D, skin pigmentation and cancer? Why do oncologists try to keep black people ignorant about their vitamin D deficiencies?
#10: Why is it illegal for nutritional supplement manufacturers to tell the truth about the anti-cancer effects of their products? Broccoli, garlic, onions and sprouts all have powerful anti-cancer effects, as do dozens of rainforest herbs (Cat's Claw, for example), Chinese herbs and Western herbs. But the FDA threatens and censors any company that dares to mention cancer prevention on its supplement products. Why is the FDA enforcing a policy of nutritional ignorance with U.S. consumers? Why does the federal government want people to remain ignorant of methods for preventing or treating cancer?
You probably already know the answer to all these questions, because the answer is the same for each one: Corporate profits. Cancer is hugely profitable to treat. Substantially preventing cancer would result in a loss of billions of dollars in profits for the oncologists, drug companies, hospitals and clinics that currently prey upon the finances of cancer victims.
The cancer industry is operated like a criminal racket, using false information, intimidation, political pressure and propaganda to protect its power base and keep its corporations profitable. And that, my friends, is exactly why the industry is against the use of sunlight to prevent cancer. Free medicine from the sky? The very thought of it makes the cancer industry cringe. Sunlight doesn't even need a prescription, you see, and it can't be patented, either.Creighton press release
Here's the original press release about the new findings on vitamin D and cancer prevention:
OMAHA, Neb., June 8 -- Most Americans and others are not taking enough vitamin D, a fact that may put them at significant risk for developing cancer, according to a landmark study conducted by Creighton University School of Medicine.
The four-year, randomized study followed 1,179 healthy, postmenopausal women from rural eastern Nebraska.* Participants taking calcium, as well as a quantity of vitamin D3 nearly three times the U.S. government's Recommended Daily Amount (RDA) for middle-age adults, showed a dramatic 60 percent or greater reduction in cancer risk than women who did not get the vitamin.
The results of the study, conducted between 2000 and 2005, were reported in the June 8 online edition of the American Journal of Clinical Nutrition.
"The findings are very exciting. They confirm what a number of vitamin D proponents have suspected for some time but that, until now, have not been substantiated through clinical trial," said principal investigator Joan Lappe, Ph.D., R.N., Creighton professor of medicine and holder of the Criss/Beirne Endowed Chair in the School of Nursing. "Vitamin D is a critical tool in fighting cancer as well as many other diseases."
Other Creighton researchers involved in the study included Robert Recker, M.D.; Robert Heaney, M.D.; Dianne Travers-Gustafson, M.S.; and K. Michael Davies, Ph.D.
Research participants were all 55 years and older and free of known cancers for at least 10 years prior to entering the Creighton study. Subjects were randomly assigned to take daily dosages of 1,400-1,500 mg supplemental calcium, 1,400-1,500 mg supplemental calcium plus 1,100 IU of vitamin D3, or placebos. National Institutes of Health funded the study.
Over the course of four years, women in the calcium/vitamin D3 group experienced a 60 percent decrease in their cancer risk than the group taking placebos.
On the premise that some women entered the study with undiagnosed cancers, researchers then eliminated the first-year results and looked at the last three years of the study. When they did that, the results became even more dramatic with the calcium/vitamin D3 group showing a startling 77 percent cancer-risk reduction.
In the three-year analysis, there was no statistically significant difference in cancer incidence between participants taking placebos and those taking just calcium supplements.
Through the course of the study, 50 participants developed nonskin cancers, including breast, colon, lung and other cancers.
Lappe said further studies are needed to determine whether the Creighton research results apply to other populations, including men, women of all ages, and different ethnic groups. While the study was open to all ethnic groups, all participants were Caucasian, she noted.
There is a growing body of evidence that a higher intake of vitamin D may be helpful in the prevention and treatment of cancer, high blood pressure, fibromyalgia, diabetes mellitus, multiple sclerosis, and rheumatoid arthritis and other diseases.
Humans make their own vitamin D3 when they are exposed to sunlight. In fact, only 10-15 minutes a day in a bright summer sun creates large amounts of the vitamin, Lappe said. However, people need to exercise caution since the sun's ultraviolet B rays also can cause skin cancer; sunscreen blocks most vitamin D production.
In addition, the latitude at which you live and your ancestry also influence your body's ability to convert sunlight into vitamin D. People with dark skin have more difficulty making the vitamin. Persons living at latitudes north of the 37th parallel -- Omaha is near the 41st parallel -- cannot get their vitamin D naturally during the winter months because of the sun's angle. Experts generally agree that the RDA** for vitamin D needs to be increased substantially, however there is debate about the amount. Supplements are available in two forms -- vitamin D2 and vitamin D3. Creighton researchers recommend vitamin D3, because it is more active and thus more effective in humans.
* Study participants came from the Nebraska counties of Douglas, Colfax, Cuming, Dodge, Saunders, Washington, Sarpy, Burt and Butler. ** RDA recommendations for vitamin D are 200 IU/d, birth-age 50; 400 IU/d, 50-70 years; and 600 IU/d, 70 years and older.
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About the author: Mike Adams is a natural health author and technology pioneer with a passion for sharing empowering information to help improve personal and planetary health He has authored and published thousands of articles, interviews, consumers guides, and books on topics like health and the environment, impacting the lives of millions of readers around the world who are experiencing phenomenal health benefits from reading his articles. Adams is a trusted, independent journalist who receives no money or promotional fees whatsoever to write about other companies' products. In 2007, Adams launched EcoLEDs, a maker of energy efficient LED lights that greatly reduce CO2 emissions. He also founded an environmentally-friendly online retailer called BetterLifeGoods.com that uses retail profits to help support consumer advocacy programs. He's also the founder and CEO of a well known email mail merge software developer whose software, 'Email Marketing Director,' currently runs the NewsTarget email subscriptions. Adams is currently the executive director of the Consumer Wellness Center, a 501(c)3 non-profit, and practices nature photography, Capoeira, Pilates and organic gardening. Known as the 'Health Ranger,' Adams' personal health statistics and mission statements are located at www.HealthRanger.org
