Study raises concerns over multivitamins and prostate cancer May 17, 2007
They add that the positive associations with excessive multivitamin use were strongest in men with a family history of the disease, or amongst men who took additional micronutrient supplements, including , selenium, or zinc. The research is at odds with a nested study published recently in The American Journal of Clinical Nutrition that reported that an increased selenium intake in combination with a daily multivitamin may reduce the risk of prostate cancer by about 40 per cent.. (NutraIngredients.com)
Heavy Multivitamin Use May Be Linked To Advanced Prostate Cancer May 17, 2007
The association was strongest in men with a family history of prostate cancer and men who also took selenium, beta-carotene, or zinc supplements. "Because multivitamin supplements consist of a combination of several vitamins and men using high levels of multivitamins were also more likely to take a variety of individual supplements, we were unable to identify or quantify individual components responsible for the associations that we observed," the authors write. (Science Daily)
Multivitamins May Increase Prostate Risk May 17, 2007
The association was strongest in men with a family history of prostate cancer and men who also took selenium, beta-carotene, or zinc supplements. Distributed by Internet Broadcasting Systems, Inc. The Associated Press contributed to this report. (Click2Houston, TX)
Too Many Vitamins Linked With Prostate Cancer May 17, 2007
The researchers said the association was strongest in men with a family history of prostate cancer and men who also took selenium, beta-carotene or zinc supplements. Just over a quarter of a million men will be diagnosed with prostate cancer in the United States this year, but fewer than 30,000 will die of it because the tumors grow slowly. (MEDLINEplus)
Multivitamin use raises risk of advanced prostate cancer? May 17, 2007
But the study also found that those who took selenium, -carotene, or zinc were among those who faced the highest risk, which is less explainable ... Men who heavily used selenium faced a 37 percent increased risk of localized prostate cancer ... Those who took selenium plus seven multivitamins a week faced a 5. (Food Consumer)
Link Between Mega Multivitamins And Cancer May 16, 2007
The link was strongest among men with a family history of prostate cancer and men who also took selenium, beta-carotene, or zinc supplements. Because the researchers had information on the use of some individual supplements but not others, they were not able to identify individual vitamins or doses associated with increased risk. (CBS News)
Multivitamin prostate warning May 16, 2007
The correlation was strongest for men with a family history of the disease, and who also took selenium, beta-carotene or zinc supplements. It is unclear why the multivitamins may increase the risk of certain types of prostate cancer. (BBC News)
Mega Multivitamin Use Risks Prostate Cancer May 16, 2007
The associations were strongest in men with a family history of prostate cancer or those who took selenium, -carotene, or zinc ... Heavy use of selenium yielded a 37% increased risk of localized prostate cancer (P=0 ... 008 for interaction) Although based on a small sample, those who took more than seven multivitamins a week and were also taking a selenium supplement were at 5. (MedPage Today)
Heavy Multivitamin Use May Raise Prostate Cancer Risk May 16, 2007
The association with heavy use of multivitamins and increased risk was strongest for men with a prior family history of prostate cancer or those who took individual micronutrient supplements such as selenium, beta-carotene or zinc, said a report by Leitzmann and his colleagues in the Journal of the National Cancer Institute. "We enrolled nearly 300,000 men who filled out questionnaires about their multivitamin use in the previous 12 months," Leitzmann said. (Forbes)
Selenium pills 'may combat HIV' May 6, 2007
Selenium pills 'may combat HIV. Selenium may help the immune system fight back against HIV ... Taking daily selenium supplements may block the build up of HIV in a patient's blood, research suggests. (BBC News)
Pros And Cons Of Antioxidants From Fruits And Vegetables Apr 19, 2007
Talcott offered this clarification in regard to the study: "This study statistically analyzed many different clinical studies with vitamins A, E (and) C, beta-carotene and selenium. The performed statistical analysis indicated that vitamin A and E and beta-caraotene may increase mortality in some of the selected studies. The meaning of this study currently is being discussed.". The study looked at synthetic antioxidants, she said, which are not the same compounds that she is researching. (Science Daily)
Selenium impact worrisome Apr 17, 2007
At least not until he learned about selenium. Selenium is a trace element that lies under layers of soil, and is an essential nutrient that has health benefits if consumed in small amounts ... Once (strip-miners) open that big swath of ground, that exposed selenium is no longer locked underground, Hart said. (Pocatello Idaho State Journal, ID)
Staying on track Apr 17, 2007
Nutritionists say that vitamin A, vitamin C, zinc and selenium can be particularly important for boosting your immune system. Cashew nuts, brazils, shellfish - especially crab - and offal are good natural sources. (Guardian Unlimited)
Supplements: No proven value Apr 10, 2007
He says he has enough anecdotal evidence to recommend several supplements, including vitamin D and selenium to reduce the risk of cancer, alpha lipoic acid to fight off heart disease and diabetes and omega-3 fish oil for brain function and blood circulation. All of those, no surprise, are on Pinto's list. (CNN)
The Thyroid and Adrenal Connection Apr 2, 2007
Supplements used to improve immune system, adrenal, and thyroid function include N-acetylcysteine (NAC), , and the alpha lipoic acid, selenium, zinc, vitamins A, B, C, D, and E.. Recommended lifestyle changes include daily exercise to reduce body fat and toxin stores, saunas to help with detoxification, eating whole natural foods, and avoiding water sources containing chlorine and fluoride. (Suite101.com)
New Research On Cancer-fighting Foods, Supplements Mar 26, 2007
The compound, which is sold in stores as a dietary supplement, adds to a growing number of products -- including lycopene, milk thistle extract, vitamin E and selenium -- that also have shown promise against prostate cancer, says Rajesh Agarwal, Ph. D., a professor in the Department of Pharmaceutical Sciences at the University of Colorado Health Sciences Center in Denver. (Science Daily)
Can taking vitamins be dangerous? Mar 22, 2007
The objective of this study was to assess the effect of beta-carotene, selenium, and vitamins A, C, and E on mortality, i.e., whether these antioxidants help you live longer ... The potential roles of vitamin C and selenium on mortality need further study. (MSNBC -- Health)
Consumers Confused Over Supplements, What And How Much To Take Mar 22, 2007
There was no increase in death found with vitamin C and selenium, but the authors say they need further study. Eric Rimm, an associate professor at Harvard's School of Public Health, who was not involved with the study, warns not to read too much into it. (KCRA 3, CA)
Consumers are wondering if it's time to throw out their vitamins Mar 18, 2007
No. The analysis looked primarily at 47 studies of beta carotene, vitamins A, C and E and selenium ... The study found no benefit from high doses of vitamin C and a potential benefit from selenium ... For selenium, the DRI is 55 micrograms but the study average was 99 micrograms. (North County Times)
Supplements in Lupus Mar 11, 2007
The antioxidants vitamin E, vitamin B3, vitamin B12, vitamin B5, vitamin A, and selenium are reported to reduce inflammation in patients with lupus. The digestive enzyme bromelain is also known to reduce inflammation. (Suite101.com)
Health & Behavior Mar 4, 2007
The new review showing no long-life benefit from those vitamins, plus beta carotene and selenium, adds to growing evidence questioning the value of these supplements. Recommend By Lindsey Tanner, Associated PressOne in four U.S. women ages 14 to 59 is infected with the sexually transmitted virus that in some forms can cause cervical cancer, according to the first broad national estimate. (USA Today -- News)
Vitamin fear watered down Mar 2, 2007
The team, headed by Goran Bjelakovic of Copenhagen University, also reported that vitamin C and selenium have no effect, suggesting that money spent on vitamin supplements is wasted. But while agreeing that "mega-dosing" on vitamin supplements can cause adverse reactions in some people, Brisbane-based Kate DiPrima, an accredited dietitian, said Australians should not be overly concerned by their morning multi-vitamin. (The Australian)
Mega-Vitamin Mega-Myth Mar 2, 2007
Researchers reviewing 68 studies on the effect of antioxidants on life span reported in the Journal of the American Medical Association this week that consumption of beta carotene, vitamin A, vitamin C, vitamin E and selenium, whether singly or combined, did not reduce the risk of premature death. If anything, the researchers concluded, there was actually a slight increase in risk of premature death among antioxidant supplement takers (with the exception of vitamin C and selenium). (Fox News -- Views)
Researchers say vitamin supplements may increase death risk Mar 1, 2007
An international research team from Copenhagen University Hospital reviewed the published evidence on beta carotene, vitamin A, vitamin E, Vitamin C and selenium which were taken by people for the purpose to improve health and guard against diseases like cancer and heart disease by eliminating the free radicals ... Selenium and vitamin C didn't show any increased risk, and selenium actually seemed to lower the risk of death. (Xinhua)
Antioxidant Study Ignores Scientific Evidence Mar 1, 2007
The team, headed by Goran Bjelakovic of Copenhagen University, also reported that vitamin C and selenium appeared to have no impact either way on longevity, suggesting that money spent on vitamin supplements is wasted. "The message is: We shouldn't be putting anything in our mouths until we know whether it works," said Christian Gluud of the Copenhagen University Hospital in Denmark, who led the study which results are not independent but based on compilated data from previous studies. (Toronto Daily News)
Antioxidants don't help you live longer Mar 1, 2007
The new review showing no long-life benefit from those vitamins, plus beta carotene and selenium, adds to growing evidence questioning the value of these supplements ... The large review of separate studies on thousands of people found no long-life benefit from vitamins A, E and C and beta carotene and selenium. (Herald Online, SC -- Health)
Antioxidant vitamins not life savers Mar 1, 2007
Of all the antioxidants examined, only selenium was associated with a reduction in mortality. The actual cause of death in most studies was unknown and studies where there were no deaths were excluded. (Globe and Mail)
Study Finds Vitamins May Mean Earlier Death Mar 1, 2007
The large review of separate studies on thousands of people found no long-life benefit from vitamins A, E and C and beta carotene and selenium. However, some experts said it's too early to toss out all vitamin pills -- or the possibility that they may have some health benefits. (Click2Houston, TX)
Antioxidants May Slightly Raise Risk of Death Mar 1, 2007
In contrast, the Danish researchers did not discern any significant influence of vitamin C and selenium on longevity, according to the report in the Journal of the American Medical Association ... Bjelakovic and associates searched the medical literature through 2005 to identify trials involving adult subjects comparing beta-carotene, vitamin A, vitamin C, vitamin E, and selenium, singly or combined, versus inactive "placebo" or versus no treatment ... Further analysis showed that only vitamin... (MEDLINEplus)
Multi-vitamin pills can kill, says study Mar 1, 2007
It also found no evidence that vitamin C increases longevity and though selenium tended to reduce mortality, more research is needed on that topic. Balz Frei, director of the Linus Pauling Institute at Oregon State University, says the study and the data studied are both flawed. (India Times, India -- Health/Science)
Antioxidant Supplements Raise Death Risk Feb 28, 2007
"Goran Bjelakovic, M.D., study researcher(WebMD) Use of the popular antioxidant supplements beta-carotene, vitamin E, or vitamin A slightly increases a person's risk of death, an overview of human studies shows. The study also shows no benefit and no harm for vitamin C supplements. Selenium supplements tended to very slightly reduce risk of death. Oxidative stress caused by highly reactive "free radical" compounds circulating in the blood is a factor in most diseases. Antioxidants sweep... (CBS News)
Vitamins 'could shorten lifespan' Feb 28, 2007
The Copenhagen team reviewed more than 815 clinical trials into the benefits of vitamins A, E, and C, alongside beta-carotene and selenium - all commonly-used supplements ... While the risk of death was unchanged among selenium and vitamin C users, a statistically significant increase in risk emerged for the other three supplements. (BBC News)
Certain vitamins may shorten lifespan Feb 28, 2007
The researchers, led by the Cochrane Hepato-Biliary Group at Copenhagen University, looked at many previous studies and reviewed more than 815 clinical trials on the benefits of vitamins A, E, and C, alongside beta-carotene and selenium - all commonly-used supplements, reported an online edition of BBC News. The Cochrane group is a respected international network of experts that does systematic reviews of scientific evidence on health interventions. (Monsters and Critics.com)
Beta carotene, E and A vitamins may increase risk of death, report says Feb 28, 2007
Vitamin C and selenium were also included in the analysis and no increased risk of death was found, according to Dr. Goran Bjelakovic, director of medical science at the Center for Clinical Intervention Research in Copenhagen ... There is no evidence that vitamin C increases longevity, they said, and while selenium tended to reduce mortality, more study is needed to confirm the benefit. (Sun-Sentinel.com)
Vitamin Pills 'Increase Risk Of Death' Feb 28, 2007
Although selenium tended to reduce mortality, more research is needed on that topic. Supplement trade group Natural Products Association said the study "stands in stark contrast to large actual clinical studies that have not demonstrated any increased risks". (Sky News)
Taking vitamins may increase risk of death, says study Feb 28, 2007
Other common supplements with similar claims made for them, vitamin C and selenium, did not increase risk of death, the researchers from Copenhagen University hospital in Denmark found, but only selenium may have some benefit ... "There is no evidence that vitamin C may increase longevity. We lack evidence to refute a potential negative effect of vitamin C on survival. Selenium tended to reduce mortality, but we need more research on this question." Around 10% to 20% of people in Europe and... (Guardian Unlimited -- UK)
Study: antioxidants won't extend your life Feb 28, 2007
Vitamin C and selenium appeared to have no impact on longevity. Based on the findings, published in the journal, the researchers warned that consumers should be cautious about taking supplements containing the nutrients. (Xinhuanet, China)
Report questions value of some vitamins Feb 28, 2007
Vitamin C showed no benefit or risk in either analysis, while selenium showed a trend toward increased risk, they said. Their study was funded by the authors' institutions. (Los Angeles Times)
Some Antioxidant Supplements Linked to Lethality Feb 28, 2007
In high-quality trials, singly or combined, after exclusion of selenium trials, beta carotene was associated with a 7% increased risk of mortality (RR, 1 ... In the analysis, vitamin C and selenium came through with no excess mortality risk, although their potential role, either harmful or beneficial, requires further study, according to the Danish group ... Selenium given singly or in combination with other supplements tended to decrease mortality when analyzed separately. (MedPage Today)
Are Too Many Vitamins Bad for Your Health? Feb 28, 2007
In a meta-analysis study published in the Journal of the American Medical Association, researchers reviewed 68 studies involving more than 200,000 patients to determine whether taking high-dose vitamin supplements in particular, beta carotene, vitamin A, vitamin C, vitamin E and selenium affected your risk of dying ... Vitamin C and selenium did not appear to affect the risk of dying. (ABC News)
Supplement use doesn't help and may harm, study finds Feb 28, 2007
Vitamin C and selenium appeared to have no impact either way on longevity ... Vitamin C and selenium did not appear to have any effect on the risk of dying ... Efforts are still under way to assess the value of taking individual antioxidants for specific purposes, including a large federal study that is testing whether Vitamin E and selenium reduce prostate-cancer risk. (Seattle Times)
Vitamins raise death risk: study Feb 27, 2007
The researchers also cleared the trace mineral selenium of increased risks ... The review examined the effects of beta carotene, vitamins A, E and C and selenium on the death of more than 230,000 adults involved in trials. (Sydney Morning Herald -- World)
Vitamin D Backed For Cancer Prevention In Two New Studies Feb 9, 2007
(July 24, 2001) -- Wake Forest University Baptist Medical Center has begun enrolling healthy men age 55 and older in the largest-ever prostate cancer prevention study, to determine if selenium and vitamin E prevent. . (Science Daily)
'Natural' Remedies May Interfere With Clinical Trials Feb 9, 2007
Among the patients, 41 said they were taking vitamins and minerals, such as vitamins A, C, D, E, and B12, selenium, magnesium, zinc, and copper. In addition, 40 patients said they took herbal preparations, including cat's claw, laetrile, St. John's wort, milk thistle, ginseng, and echinacea. (Health-Finder)
Serum selenium may lower prostate cancer risk in some men Feb 8, 2007
High dietary intake of selenium may reduce risk of prostate cancer in certain groups of men, a new study suggests ... Early studies have found that high serum levels of selenium were linked with reduced risk of prostate cancer ... A study published in a December 2001 issue of The Journal of Urology found that low levels of serum selenium was associated with a 4 to 5-fold increased risk of prostate cancer. (Food Consumer)
Selenium Loss Linked to Cognitive Decline in Aged Feb 3, 2007
NEW YORK (Reuters Health) - The results of a new study conducted by researchers in France suggest that selenium levels decrease with age, which may contribute to a loss of neurological abilities in the elderly. Because "oxidative stress" is one cause of brain impairment, "selenium, which is an antioxidant, may protect against cognitive decline," Dr. N. Tasnime Akbaraly, of Universite Montpellier, and colleagues report in the journal Epidemiology ... At study entry, the average selenium levels in... (MEDLINEplus)
Selenium Supplements May Contribute To Reduced HIV Viral Load Jan 24, 2007
Taking daily selenium supplements appears to increase the level of the essential mineral in the blood and may suppress the progression of viral load in patients with HIV infection, according to an article in the January 22 issue of Archives of Internal Medicine, one of the JAMA/Archives journals ... Selenium deficiencies have been observed in patients with HIV spectrum disease and evidence suggests that selenium supplements can improve immune functioning ... D., University of Miami, and... (Science Daily)
Study: selenium reduces virus in HIV patients blood Jan 24, 2007
BEIJING, Jan. 24 (Xinhuanet) -- HIV patients who take a daily supplement of selenium, an antioxidant mineral, modestly reduce the amount of virus in their blood, according to media reports on Wednesday. Patients taking 200 micrograms of high selenium yeast daily saw an average 12 percent drop in blood virus levels, a study in the U.S. Archives of Internal Medicine said ... "I liken selenium to a lion tamer in a circus," said lead author Barry Hurwitz, a professor of psychology and medicine at... (Xinhuanet, China)
Selenium May Help Lower HIV Levels Jan 24, 2007
NEW YORK -- Selenium supplements can slow the rise in virus levels in HIV-positive patients, which allows the number of beneficial CD4 immune cell to increase, according to results of a clinical trial supported by grants from the National Institutes of Health. Low blood levels of selenium have been linked to high HIV virulence and more opportunistic infections, Dr. Barry E. Hurwitz and associates at the University of Miami in Florida report in the Archives of Internal Medicine ... "Something... (Newsmax)
Selenium supplements suppress HIV in some patients Jan 24, 2007
Taking selenium supplements is an effective yet inexpensive preventive measure every HIV positive patient may take to get the disease under control, results of a U.S. government-sponsored trial suggest. But results also show some patients may not absorb selenium well enough to have a beneficial effect ... Dr. Barry E. Hurwitz and associates at the University of Miami in Florida found that taking selenium supplements actually suppresses replication of the HIV virus in some HIV-positive patients... (Food Consumer)
Selenium Supplements May Slow HIV Progression Jan 23, 2007
MIAMI, Jan. 22 -- Selenium supplements appear to slow the progress of HIV, according to interim results of a study conducted here ... Explain to interested patients that selenium plays a role in the body's immune system and that deficiencies are associated with poor immune function ... Point out that this study suggests that selenium supplements may safely improve the immune function of patients with HIV.. (MedPage Today)
Murder evidence lacking, DA says Jan 20, 2007
Adanalian's family contend she was given a fatal dose of selenium by her husband, Mark Adanalian ... Six months later, his successor, Loralee Cervantes, changed the cause of death to selenium poisoning ... She said it's true that experts were divided, but she decided to go with the opinion of the forensic pathologist, Dr. Albert Sui of Stockton, who said selenium poisoning killed Adanalian. (Fresno Bee -- Local)