Institute for Health and Sport, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia.
VU First Year College ®, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia.
Sci Rep. 2023 May 26;13(1):8556. doi: 10.1038/s41598-023-35501-0.
Cereal foods are consumed globally and are important sources of polyphenols with potential health benefits, yet dietary intakes are unclear. We aimed to calculate the dietary intakes of polyphenols from cereal foods in the Melbourne Collaborative Cohort Study (MCCS), and describe intakes by demographic and lifestyle factors. We estimated intakes of alkylresorcinols, lignans and phenolic acids in n = 39,892 eligible MCCS participants, using baseline dietary data (1990-1994) from a 121-item FFQ containing 17 cereal foods, matched to a polyphenol database developed from published literature and Phenol-Explorer Database. Intakes were estimated within groups according to lifestyle and demographic factors. The median (25th-75th percentile) intake of total polyphenols from cereal foods was 86.9 mg/day (51.4-155.8). The most consumed compounds were phenolic acids, with a median intake of 67.1 mg (39.5-118.8), followed by alkylresorcinols of 19.7 mg (10.8-34.6). Lignans made the smallest contribution of 0.50 mg (0.13-0.87). Higher polyphenol intakes were associated with higher relative socio-economic advantage and prudent lifestyles, including lower body mass index (BMI), non-smoking and higher physical activity scores. The findings based on polyphenol data specifically matched to the FFQ provide new information on intakes of cereal polyphenols, and how they might vary according to lifestyle and demographic factors.
谷物食品在全球范围内被广泛食用，是具有潜在健康益处的多酚的重要来源，但人们对其饮食摄入量还不清楚。我们旨在计算墨尔本协作队列研究（MCCS）中谷物食品中多酚的饮食摄入量，并描述按人口统计学和生活方式因素的摄入量情况。我们使用包含 17 种谷物食品的 121 项食物频率问卷（FFQ）的基线饮食数据（1990-1994 年），计算了 39892 名合格的 MCCS 参与者中烷基间苯二酚、木脂素和酚酸的摄入量，该 FFQ 数据与从已发表文献和 Phenol-Explorer 数据库开发的多酚数据库相匹配。根据生活方式和人口统计学因素，在组内估计摄入量。从谷物食品中摄入的总多酚的中位数（25 至 75 百分位数）为 86.9mg/天（51.4-155.8）。消耗量最大的化合物是酚酸，中位数为 67.1mg（39.5-118.8），其次是烷基间苯二酚，中位数为 19.7mg（10.8-34.6）。木脂素的摄入量最小，为 0.50mg（0.13-0.87）。更高的多酚摄入量与更高的相对社会经济优势和谨慎的生活方式有关，包括较低的体重指数（BMI）、不吸烟和更高的体力活动评分。这些基于专门与 FFQ 匹配的多酚数据的发现提供了关于谷物多酚摄入量的新信息，以及它们如何根据生活方式和人口统计学因素而有所不同。
