Nuts and green tea key to cancer treatment?

Green tea and Brazil nuts are being used in a ground-breaking joint trial by Flinders University and Flinders Medical Centre to investigate their cancer-fighting qualities.

The trial, which is being undertaken by researchers in the Department of Gastroenterology, will investigate if a combination of Brazil nuts and green tea provides greater health benefits for the bowel than either on their own.

Study Coordinator Jane Upton said the team hoped to recruit up to 30 participants for the study, who would be required to incorporate Brazil nuts and/or green tea capsules into their diet for six weeks.

“This study is an extension on previous studies we’ve done,’’ Ms Upton, based in the Flinders Centre for Innovation in Cancer, said.

“We’ll be investigating the idea that selenium (in the form of Brazil nuts) enhances natural cellular defence within the bowel wall; green-tea regulates the repair of DNA; and a combination of both is more effective in suppressing the development of colorectal cancer than selenium or green tea alone.”

Selenium is a micronutrient which is transferred to the human body from the soil via plants. It’s thought to be important for liver, thyroid, heart and immune function and there is some evidence that selenium supplementation reduces the risk of colon, lung and prostate cancers.

Green tea has long been considered to possess health benefits, particularly in relation to cancer prevention and is available in numerous forms including dried leaves, a powder extract and capsules.

As part of this trial, participants will first undergo a blood test to ascertain their baseline selenium levels, before continuing on a normal diet for four weeks. After this four-week period, participants will be randomly chosen to take a particular dietary supplement for six weeks:

1. six Brazil nuts each day
2. four green tea capsules each day
3. both Brazil nuts and green tea

Blood samples and an internal bowel examination will be undertaken at the start and end of the six week period to determine selenium levels in the blood and colon.

Gastroenterology researcher Dr Ying Hu said the recommended daily selenium intake for Australian adults was 50-75 micro grams per day.

“These intakes are not achieved for a significant proportion of the population,” Dr Hu said.

“People, who are deemed vulnerable, such as the elderly and smokers, may be at increased risk for certain chronic diseases including cancers.

“Increased selenium intake through diet is strategically important as selenium concentration in many Australian soils and foods is often quite low.

“Recent evidence has shown that an anti-cancer benefit was achievable from levels of selenium supplementation above what is currently recommended.”

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2 thoughts on “Nuts and green tea key to cancer treatment?

  1. A DR in the USA has never seen a case of cancer in a patient which has their tonsils and adenoids intact…

    researchers have found that your tonsils and adenoids are part of your immune system…

    it could be the same story with your appendix…

    anyway they serve a purpose, that’s why God gave them to you (for those that believe in God).

    some people have no choice but to get them taken out, which serves as a reminder that we are imperfect and require medical interventions to fix the problem.

    the easiest and simplest way to cure a inflamed tonsil is to remove it…
    what we should be researching is how to cure an inflamed tonsil without antibiotics, so that the person may keep a part of their immune system and therefore reduce future medical expenses.

    we live in the 21st century, surely we can find a cure for inflamed tonsils and do away with the surgical removal of the immune system….

  2. Does it matter what green tea do you drink? I do not drink any caffeinated drinks, but I have decaf green tea occasionally.

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