Posts Tagged ‘cancer risk’

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 untilĀ  I see validation of these conclusions by research.

Being Taller Increases Risk of Cancer for Women

Wednesday, August 17th, 2011

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Research published in online Lancet Oncology concluded that taller women are an at an increased risk of developing a wide range of cancers (breast, ovary, bowel. skin, leukemia, and melanoma). According to the researchers, there is an increase risk of cancer by 16% for each 10cm (4 inches) increase in height and this association holds for women from Asia, Europe, and North America.
The study evaluated 97,000 women who developed cancer over a 10 year period and were between 5 feet and 5 feet 9 inches tall. Researchers found the average incidence of cancer for women of average height was 850/100,000 women per year whereas at a height of 5 feet it was 750/100.000 and at 5 feet 9 inches it was 1000/100,000 per year. The incidence of cancer varied slightly by cancer type. For example, for every 4 inch increase in height the incidence of breast cancer rose by 17% but for uterine cancer it rose by 19%. Two factors identified that may account for the differences seen included hormonal changes, nutrition.

Low-Carb, Hi-Protein Diet May Reduce Cancer Risk and Tumor Growth

Wednesday, June 22nd, 2011

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A new study published in Cancer Research, a journal of the American Association for Cancer Research, and based upon mice research concluded that eating a diet high in protein and low in carbohydrate may reduce the risk of cancer and slow the growth of tumors.

The researchers implanted various strains of mice with human tumor cells or with mouse tumor cells and assigned them to one of two diets. One diet that was typical of Western diets contained about 55% carbohydrates, 23% protein and 22% fat. The other diet was high in protein, contained 15% carbohydrate , 58% protein, and 26% fat.

Findings showed that tumors consistently grew slower in the Hi-Protein, Lo-Carb diet. In one group of mice genetically predisposed to breast cancer half were placed on the Western type diet and half on the other diet. Almost half of those on the Western type diet developed breast cancer within the first year whereas none of those on the other type diet did. In addition, only one of the mice on the Western type diet reached age 2 (normal life span) and 70% of them died from cancer. Conversely over half of those on the Hi Protein, Lo-Carb diet live to age two and only 30% developed cancer.
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It is interesting that alternative physicians have utilized this information for years using an intervention that reduces carbohydrates as part of the insulin potentiation treatment. It is also interesting that 36 years ago when I was given 6 months to live when diagnosed with lung cancer and sought out an alternative physician , part of my alternative treatment was a diet that eliminated most carbohydrates and all simple sugars.