ProHealth health Vitamin and Natural Supplement Store and Health
Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help

|
|
|
|

Trending News

CDC Whistleblower Reveals Widespread Manipulation of Scientific Data and Top-Down Pressure on CDC Sc...

How Glutathione Can Save Your Life

Reversing Neurodegeneration with a New Magnesium Compound

Gut Bacteria, Artificial Sweeteners and Glucose Intolerance

Brain inflammation dramatically disrupts memory retrieval networks, UCI study finds

Scientists discover how to 'switch off' autoimmune diseases

Clinical trial demonstrates safety, effectiveness of immunotherapy for AdV, BKV, and herpesviruses i...

Surprising discovery: HIV hides in gut, evading eradication

New estrogen-based compound suppresses binge-like eating behavior in female mice

Long-term use of pills for anxiety and sleep problems may be linked to Alzheimer's

 
Print Page
Email Article

Get Smart About Selenium and Prostate Cancer

  [ 245 votes ]   [ Discuss This Article ]
By Karen Collins, R.D. • www.ProHealth.com • October 11, 2004


Mineral supplements may help prevent disease, studies find

A recent study links the consumption of the essential mineral selenium with a lower risk of prostate cancer. There are now seven population studies in the past six years that examined the possible connection between selenium and prostate cancer. All but one of them have found selenium protective. Yet, since scientists are still uncertain how prostate cancer starts or can be prevented, it is too early to say that selenium definitely protects the prostate. There is much more to learn.

The latest study, however, is especially important because it is the largest study to date. It tracked the health of the men participating for up to 13 years. The duration of the study is significant because prostate cancer is usually a slow growing cancer, influenced by diet and lifestyle over decades as it develops. In this recent study, men with the highest levels of selenium in their blood were about half as likely to develop advanced prostate cancer as the men with the lowest blood selenium. Similarly, two past studies show that those with the lowest blood selenium have a moderately increased risk of prostate cancer.

More studies in progress

Besides examining blood levels of selenium, studies are under way to test the effectiveness of selenium supplements in reducing prostate cancer. One major U.S. study in progress supplies participants with a supplement of either selenium, vitamin E, or both. The development of prostate cancer among these people will be compared to other participants who receive no supplements. Another study in France is testing an antioxidant vitamin supplement that includes selenium. An earlier U.S. study found that selenium supplements cut the risk of prostate cancer nearly in half, except for those whose blood levels of selenium were already high.

Because it boosts the body's antioxidant capacity, scientists believe that selenium can control cell damage that may lead to cancer. Selenium may even act in other ways to stop early cancer cells in their development. While study results so far are fairly positive about selenium's anti-cancer potential, many questions remain: How much selenium is enough for men? Can men get enough from food? Would supplements help every man or only some?

Should you take supplements?

The Recommended Dietary Allowance for selenium was set at 55 micrograms for adult men and women to maximize only one antioxidant enzyme system of which selenium is an essential part. The studies that give men extra selenium in a supplement form generally give 100 to 200 mcg. It is unclear whether smaller supplement amounts could help prevent prostate cancer. Optimal anti-cancer effects, however, may require more than the RDA.

In the United States, almost everyone receives more than the RDA for selenium from foods. It's easy to see why. There is 40 to 70 mcg of selenium in a three-ounce portion of fish, 23 - 30 mcg in a 3-ounce portion of poultry or meat, and 15 - 35 mcg in one cup of pasta, rice or two slices of bread. The entire RDA for selenium can also be consumed in 3 to 4 Brazil nuts.

If you want to take a selenium supplement anyway, first check to see how much extra selenium is in any vitamin supplements you use (they often contain about 20 mcg), as well as in fortified cereals, bars or other foods. The National Academy of Science warns that too much selenium can cause nerve damage, hair loss and digestive disturbances. The maximum amount from food and supplements considered safe is 400 mcg a day.

If supplements help prevent prostate cancer, it's still unknown who would benefit. Some studies suggest benefits might be limited to older men or men whose diets are low in antioxidants. In a few years, the work of researchers should make the answers clearer.

Nutrition Notes is provided by the American Institute for Cancer Research in Washington, D.C. Source: MSNBC.com


Please Discuss This Article:   Post a Comment 



[ Be the first to comment on this article ]




 
Free Chronic Fatigue Syndrome and Fibromyalgia Newsletters
Subscribe to
Our FREE
Newsletter
Subscribe Now!
Receive up-to-date ME/CFS & Fibromyalgia treatment and research news
 Privacy Guaranteed  |  View Archives

Free Shipping on Nutritional Supplement Orders

Featured Products

Optimized Curcumin Longvida® by ProHealth Optimized Curcumin Longvida® by ProHealth
Supports Cognition, Memory & Overall Health
Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils
Vitamin D3 Extreme™ by ProHealth Vitamin D3 Extreme™ by ProHealth
50,000 IU Vitamin D3 - Prescription Strength

Natural Remedies

Ubiquinol - A More Advanced Form of the Energy Producing Nutrient CoQ-10 Ubiquinol - A More Advanced Form of the Energy Producing Nutrient CoQ-10
Anti-Inflammatory Properties of Tart Cherry Anti-Inflammatory Properties of Tart Cherry
Rejuvenating the Brain - How PQQ Helps Power Up Mental Processing Rejuvenating the Brain - How PQQ Helps Power Up Mental Processing
Magnesium + Malic Acid: One-Two Punch for Pain & Fatigue Magnesium + Malic Acid: One-Two Punch for Pain & Fatigue
Sunshine Vitamin Has D-lightful Health Benefits Sunshine Vitamin Has D-lightful Health Benefits

FIBROMYALGIA RESOURCES
What is Fibromyalgia?
Fibromyalgia 101
Fibromyalgia Symptoms
Fibromyalgia Treatments
| CFS RESOURCES
What is CFS?
ME/CFS 101
ME/CFS Symptoms
ME/CFS Treatments
| FORUMS
Fibromyalgia
ME/CFS
ADVANCED MEDICAL LABS
WHOLESALE  |  AFFILIATES
GUARANTEE
CONTACT US
PRIVACY
RSS
SITE MAP
ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus
Credit Card Processing