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。
*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。
Ten questions to ask yourself about the cancer industry
New research shows vitamin D slashes risk of cancers by 77 percent; cancer industry refuses to support cancer prevention
Friday, June 08, 2007 by: Mike Adams
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
#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
original press release about the new findings on vitamin D and cancer
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.
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