Dietary GI, GL, II, or fiber was not associated with risk of total or subgroups of prostate cancer. We observed a positive association between dietary intake of whole grains and total prostate cancer (HR highest versus lowest quintile 1.13, 95% CI 1.03-1.24), which was attenuated after restriction to PSA-screened participants (HR 1.03, 95% CI 0.91-1.17).
What do they conclude?
These results suggest that long-term exposure to a diet with a high insulin response does not affect prostate cancer incidence.
Er.....but what about the whole grains!? Doesn't your study suggest that they are associated with increased incidence of cancer?