Research

Hormonal

In statin non-users with metabolic syndrome, consuming 1 cup of blueberries daily for 6 months significantly increases HDL cholesterol, HDL particle number, and apolipoprotein A-I levels.

If you have metabolic syndrome and are not taking statins, eating one cup of blueberries daily for six months may improve your HDL cholesterol and particle numbers. This benefit was not observed in those taking statins, suggesting medication may interfere with this specific dietary effect.

GoodQualifiesHIGH confidence
In statin nonusers (n = 71)... elevated high-density lipoprotein cholesterol (+0.08 mmol/L; P = 0.03), high-density lipoprotein particle density (+0.48n, ×10–6; P = 0.002) and apolipoprotein A-I (+0.05 g/L; P = 0.01) concentrations were observed following the 1-cup/d intervention.
Peter J. Curtis et al. · American Journal of Clinical Nutrition · 2018

Why this rating

RCT design with clear subgroup analysis, though the effect is specific to non-statin users.

Source

Blueberries improve biomarkers of cardiometabolic function in participants with metabolic syndrome—results from a 6-month, double-blind, randomized controlled trial

Peter J. Curtis et al. · American Journal of Clinical Nutrition · 2018

DOI 10.1093/ajcn/nqy380

rct · n=115Cited 242×
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DOI resolved against Crossref · corpus check 2026-06-10

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