The Study
Eating whole fruit, not drinking fruit juice, may reduce the risk of type 2 diabetes mellitus
We couldn't fully understand what type of study this is, so we're being extra careful about what conclusions to draw from it.
Analysis score
Maximum 5 for a narrative review.
Where the score came from
Eating whole fruits like apples and oranges helps keep your blood sugar healthy, but drinking fruit juice doesn’t help as much. The fiber and stuff in the fruit slow down sugar absorption and help your body use insulin better.
Where does this study sit?
Systematic Reviews & Meta-analyses
Max 100Randomized Trials
Max 90Cohort Studies
Max 72Case-Control
Max 58Cross-Sectional
Max 44Case Reports & Series
Max 30Expert Opinion
Max 52 / 100
Quality score
Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes, this is meaningful—eating whole fruit regularly can help prevent diabetes, especially compared to drinking juice.
- 2People who eat about one apple a day (230g fruit) have 36% less chance of getting type 2 diabetes in 5 years.
- 3Apple eaters also have lower blood sugar and better insulin function.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Journal of Diabetes Investigation
Year
2021
Authors
Y. Seino, K. Iizuka, A. Suzuki
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.