In April 2019 researchers from France published the results of their review of the medical scientific literature to assess whether the degree of fruit processing influenced its effect on chronic diseases. A total of 10 studies that linked fruit consumption with the risk of chronic disease were reviewed systematically to examine the effects of fruit processing. Results showed that the degree of processing influenced the health effects of fruit-based products. Fresh and dried fruits appeared to have a neutral or protective effect on health, 100% fruit juices had intermediary effects, and a high consumption of canned fruit and sweetened fruit juice was associated with an increased risk for diabetes type 2.
Fardet A et al. Association between consumption of fruit or processed fruit and chronic diseases and their risk factors: a systematic review of meta-analyses. Nutr Rev. 2019 Apr 17. [Epub ahead of print]