Posts Tagged ‘gamma-tocopherol’

Daily Pistachios May Reduce the Risk of Lung Cancer

Friday, March 11th, 2011


A study recently presented at the American Association for Cancer Research Frontiers in Cancer Prevention Research Conference concluded that a diet that includes daily pistachios may help reduce the risk of lung cancer. Pistachios are a known source of of gamma-tocopherol so eating them increases the intake of gamma-tocophenoli, a form of vitamin E, and from research it has been suggested that vitamin E is protective against prostate cancer. The researchers,thus, thought it might also help prevent lung cancer.

In the study 36 healthy participants were randomly assigned to an intervention or control group with 18 in each. The methodology included a 2 week baseline period followed by a 4 week intervention period. During the intervention period the subjects were given 68 grams (about 2 ounces or 117 kernels) of pistachios daily while the control group continued with their normal diet only.

The effect of the intake on serum cholesterol-adjusted gamma-tocopherol was investigated using the Nutrition Data system for Research Version 2007 for intake and consumption was measured by monitoring the diet diaries and measuring the weight of returned pistachios. The researchers found a significant increase in energy-adjusted dietary intake of gamma-tocopherol during the third and fourth weeks for those who included the pistachios in their diet. Similar results were found at week five and six compared to those in the control group. The cholesterol-adjusted serum gamma-tocopherol was also significantly higher in the pistachio group at the end of the study period compared to their baseline data. Further research is needed to validated the potential relationship between gamma-tocopherol levels and lung cancer risk.

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