Posts Tagged ‘selenium’

Does Selenium Influence Cancer Risk?

Friday, September 9th, 2016

logo1267406_md

A new study published in the American Journal of Clinical Nutrition concluded that high blood selenium levels are associated with a decrease risk of developing liver cancer. Selenium in the natural form is found in fish, shellfish, meat, milk, eggs, and certain nuts such as Brazil nuts.

In the case-control study, the researchers investigated a cohort of 477,000 participants, and selected individuals who had developed liver cancer during a 10 year follow up. Blood samples were obtained and analyzed for selenium levels. They found that the third of the population with the lowest selenium level had a five to ten fold increase risk of developing liver cancer. They also found that selenium supplements do not have a direct protective effect against liver cancer. “However, it does conform the importance of a balanced diet, of which selenium forms an integral part.”

Interviews with Dr Jacob Teitelbaum (Fibromalgia, CFS, Alzheimers) and Kristin Mallon (Midwifery) Now Available for Listening.

Sunday, September 30th, 2012

Guests on the show yesterday were Dr. Jacob Teitelbaum (left) and Kristin mallon (right).

Dr Teitelbaum is one of the leading authorities on fibromyalgia and chronic fatigue syndrome and has written best selling books, appeared on major radio and television programs and spoken internationally. More information is available at: http://www.endfatigue.com

Kristin Mallon is a certified nurse midwife with a masters in nursing and is in private practice in northern new Jersey and is a published author and breastfeeding counselor. More information is available at: http://www.njmidwifery.com

Enjoy the interview below:

Can a High Dietary Antioxidant Intake Cut the Risk of Pancreatic Cancer?

Wednesday, August 1st, 2012

New research published in the journal Gut concluded that increasing the dietary intake of the antioxidant vitamin C, E. and selenium can help reduce the risk of pancreatic cancer by up to two-thirds and if the relationship turns out to be causal one in twelve of these cancers might be prevented.

Researchers tracked the health of over 23,500 people between age 40 and 74 between 1993 and 1997.  All participants completed a comprehensive food diary over 7 days detailing the type and amount of all food they ate and the methods they used for preparing it. Each entry in the food diary was matched to one of 11,000 food items and the nutrient values calculated using a special computer program.  Within 10 years of entering the study forty-nine people (55% men) developed pancreatic cancer and by 2010 this number increased to 86 (45% men). On average pancreatic participants survived 6 months after diagnosis.

The nutrient intake of those who were diagnosed with pancreatic cancer within 10 years of entering the study were compared with the nutrient intake of almost 4,000 health people. Analysis showed that a weekly intake of selenium in the top 25% of consumption had almost 1/2 the risk of developing pancreatic cancer compared with those whose intake was in the bottom 25%. And those wit a vitamin C, E. and selenium in the top 25% of consumption were 67% less likely to develop pancreatic cancer than those in the bottom 25% of intake.  The researchers say that if this relationship turns out to be causal that would mean preventing more than one in twelve (8%) cases of pancreatic cancer.

Do Dietary Supplements Increas Cancer Risk?

Wednesday, May 23rd, 2012

A report in the Journal of the National Cancer Institute concluded that three supplements–beta-carotene, selenium, and folic acid–taken at up to three times their recommended daily allowances, are probably harmless but at much higher levels have been shown to increase the risk of developing a variety of cancers. Unfortunately, although Professor Byers from Colorado School of Public Health presented general terms about the subject and the report was picked up by several news sources, there was no data to back up the conclusion in this commentary piece. Thus, until I see some research that documents the conclusions presented I would tuck it in the back of my mind without accepting until  I see validation of these conclusions by research.