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Aims/Introduction  Some previous studies reported no significant association of consuming fruit or vegetables, or fruit and vegetables combined, with type 2 diabetes. Others reported that only a greater intake of green leafy vegetables reduced the risk of type 2 diabetes. To further investigate the relationship between them, we carried out a meta‐analysis to estimate the independent effects of the intake of fruit, vegetables and fiber on the risk of type 2 diabetes.    Materials and Methods  Searches of  MEDLINE  and  EMBASE  for reports of prospective cohort studies published from 1 January 1966 to 21 July 2014 were carried out, checking reference lists, hand‐searching journals and contacting experts.    Results  The primary analysis included a total of 23 (11 + 12) articles. The pooled maximum‐adjusted relative risk of type 2 diabetes for the highest intake vs the lowest intake were 0.91 (95% confidence interval [ CI ] 0.87–0.96) for total fruits, 0.75 (95%  CI  0.66–0.84) for blueberries, 0.87 (95%  CI  0.81–0.93) for green leafy vegetables, 0.72 (95%  CI  0.57–0.90) for yellow vegetables, 0.82 (95%  CI  0.67–0.99) for cruciferous vegetables and 0.93 (95%  CI  0.88–0.99) for fruit fiber in these high‐quality studies in which scores were seven or greater, and 0.87 (95%  CI  0.80–0.94) for vegetable fiber in studies with a follow‐up period of 10 years or more.    Conclusions  A higher intake of fruit, especially berries, and green leafy vegetables, yellow vegetables, cruciferous vegetables or their fiber is associated with a lower risk of type 2 diabetes.

Higher intake of fruits, vegetables or their fiber reduces the risk of type 2 diabetes: A meta‐analysis