Fruit juice and type 2 diabetes mellitus.

Fruit juices: Data about fruit juices was provided by 3 cohorts. A significantly increased type 2 diabetes risk of total fruit juices, apple juice, grapefruit juice, and orange juice was found in one cohort (3), but no associations were found with total fruit juices (7), or citrus fruit juice (13), in the other cohorts.

Sweetened fruit juices: Dat about sweetened fruit juices was provided by 2 cohorts. The relation with total sweetened fruit juices was examined once (13), and the relation with sweetened berry juice was examined in the other cohort (6). Significantly increased risks of diabetes type 2 were found in both cohorts.

Conclusion: Significantly increased risks of sweetened fruit juices were found in 2 cohorts, one of which was of very small size. Suggestive evidence was found for an increased type 2 diabetes risk of sweetened fruit juices. This association was found at the level of ≥ 1 drink/day.
Inconsistent findings were done with unsweetened fruit juices.