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. 2025 Feb 1;83(2):e722-e735.
doi: 10.1093/nutrit/nuae036.

Health effects of drinking 100% juice: an umbrella review of systematic reviews with meta-analyses

Emma L Beckett  1   2 , Flávia Fayet-Moore  1   2 , Tim Cassettari  1 , Carlene Starck  1 , Jutta Wright  1 , Michelle Blumfield  1
Affiliations

Health effects of drinking 100% juice: an umbrella review of systematic reviews with meta-analyses

Emma L Beckett et al. Nutr Rev. .

Abstract

Context: Low fruit and vegetable intakes are major modifiable determinants of disease. One hundred percent juice may facilitate intake and deliver essential nutrients and bioactive compounds. However, the position of 100% juice in healthy eating guidelines remains controversial due to its lower dietary fiber and higher free-sugar contents compared with whole fruits and vegetables.

Objective: To conduct an umbrella review of systematic literature reviews with meta-analyses (MAs) to summarize the health benefits of drinking 100% fruit and/or vegetable juice.

Data sources: Four databases (Medline, The Cochrane Library, EMBASE, and CINAHL) were systematically searched for MAs of 100% juice and any health outcomes.

Data analysis: Screening, quality, risk of bias, and content overlap tools were applied, and extracted data were narratively synthesized. No eligible studies for vegetable juice were found. Fifteen systematic literature reviews (51 primary MAs, 6 dose-response, and 87 subanalyses; 50-1200 mL/day; hours to years of duration) were included. Ten MAs (19.6%) reported health benefits (4 for blood pressure, 2 for vascular function, 3 for inflammation, 1 for stroke mortality), 3 MAs (5.9%) reported adverse risks (1 each for cardiovascular disease mortality, prostate cancer, type 2 diabetes risk), while most (74.5%) reported no effect (blood lipids, body composition, liver function, metabolic health, cancers, and inflammation). Risks were limited to cohort studies and benefits were found in both cohort and intervention studies.

Conclusion: The findings collate evidence showing some potential health benefits associated with 100% juice consumption, with fewer potential risks. The balance of evidence does not support the exclusion of 100% juice from food-based guides to healthy eating, although caution may be warranted in certain groups or individuals, and the body of evidence is not yet conclusive.

Systematic review registration: PROSPERO registration no. CRD42022380588.

Keywords: 100%; chronic disease; dietary guidelines; fruit juice; nutritional epidemiology; systematic review.

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Figure 1
PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) flow diagram of the literature search process.
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