Journal of Functional Foods · Published 2026-06-25 · DOI 10.1016/j.jff.2026.107405
Se Yeon Kim, Kyeong Jin Kim, Soo-yeon Park, Hyounggyoon Yoo, Ji Yeon Kim
Postprandial lipemia represents an independent cardiovascular risk factor. Rice bran (OS), rich in γ-oryzanol, may modulate lipid metabolism. However, effects on postprandial triglyceride (TG) metabolism remain incompletely characterized. This randomized, double-blind, placebo-controlled trial evaluated 4-week OS supplementation (3.3 g/day) in 70 healthy adults with normal or borderline-high fasting TG. OS significantly reduced TG incremental area under the curve (iAUC) over 480 min (p = 0.024), with reductions during 120–240 min (p = 0.038) and 240–480 min (p = 0.040). At week 4, chylomicron (CM)-TG at 480 min decreased significantly (p = 0.034), while apolipoprotein B (apoB)-48 and apoB-100 remained unchanged. Postprandial glucose at 120 min was reduced at both weeks 0 and 4 (p = 0.026, p = 0.017). These findings demonstrate that OS attenuates postprandial TG accumulation, suggesting improved late-phase CM-TG clearance, and improves postprandial glucose responses, with potential implications for cardiovascular risk management.
Abstract from DOAJ. Public domain (CC0 1.0).
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Kim, S., Kim, K., Park, S., et al. (2026). Rice bran supplementation attenuates postprandial triglyceride response in healthy adults: A randomized, double-blind, placebo-controlled, parallel trial. Journal of Functional Foods. https://doi.org/10.1016/j.jff.2026.107405