The August 31, 2013 issue of the British Medical journal published a paper titled “Fruit consumption and risk of type 2 diabetes: results from three prospective longitudinal cohort studies”,
It can be accessed at:
Participants included 66105 women from the Nurses’ Health Study (1984-2008), 85 104 women from the Nurses’ Health Study II (1991-2009), and 36173 men from the Health Professionals Follow-up Study (1986-2008) who were free of major chronic diseases at baseline in these studies.
During 3 464 641 person years of follow-up, 12 198 participants
developed type 2 diabetes. After adjustment for personal, lifestyle, and
dietary risk factors of diabetes, the pooled hazard ratio of type 2 diabetes
for every three servings/week of total whole fruit consumption was 0.98
(95% confidence interval 0.96 to 0.99).
The paper concluded thus:
” Our findings suggest the presence of heterogeneity in the
associations between individual fruit consumption and risk of type 2
diabetes. Greater consumption of specific whole fruits, particularly
blueberries, grapes, and apples, is significantly associated with a lower
risk of type 2 diabetes, whereas greater consumption of fruit juice is
associated with a higher risk.”