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Fruit juice – good for you?

Child or adult, drinking fruit juice must be a great way of contributing to your five-a-day of fruits and vegetables. There is a lot of free sugar in 100% fruit juice and no fibre. Do these high sugar drinks contribute to obesity? Nguyen M et al (JAMA Pediatr 2024;178:237–246) have completed a systematic review focussing on the evidence that fruit juice has an impact on weight gain and BMI by examining MEDLINE, Embase, and Cochrane databases searching up to 18 May 2023. They looked for prospective cohort studies of at least 6 months and randomised clinical trials (RCTs) of at least 2 weeks assessing the association of 100% fruit juice with body weight change in children and adults. They identified 42 eligible studies with 17 cohort studies (but interestingly no RCTs) involving 45 851 children with a median (IQR) age of 8 [1–15] years). In the paediatric cohort studies, each additional serving per day of 100% fruit juice was associated with a 0.03 (95% CI, 0.01 to 0.05) higher BMI change. The effect was stronger in younger children. The RCTs in adults found no significant association of assignment to 100% fruit …

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  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Provenance and peer review Commissioned; internally peer reviewed.