O'Donovan Clare B, Walsh Marianne C, Nugent Anne P, McNulty Breige, Walton Janette, Flynn Albert, Gibney Michael J, Gibney Eileen R, Brennan Lorraine
Institute of Food & Health, University College Dublin (UCD), Belfield, Dublin, Ireland.
Mol Nutr Food Res. 2015 Mar;59(3):377-85. doi: 10.1002/mnfr.201400591. Epub 2014 Dec 18.
Personalised nutrition can be defined as dietary advice that is tailored to an individual. In recent years, the concept of targeted nutrition has evolved, which involves delivering specific dietary advice to a group of phenotypically similar individuals or metabotypes. This study examined whether cluster analysis could be used to define metabotypes and developed a strategy for the delivery of targeted dietary advice.
K-means clustering was employed to identify clusters based on four markers of metabolic health (triacylglycerols, total cholesterol, direct HDL cholesterol and glucose) (n = 896) using data from the National Adult Nutrition Survey. A decision tree approach was developed for the delivery of targeted dietary advice per cluster based on biochemical characteristics, anthropometry and blood pressure. The appropriateness of the advice was tested by comparison with individualised dietary advice manually compiled (n = 99). A mean match of 89.1% between the methods was demonstrated with a 100% match for two-thirds of participants.
Good agreement was found between the individualised and targeted methods demonstrating the ability of this framework to deliver targeted dietary advice. This approach has the potential to be a fast and novel method for the delivery of targeted nutrition in clinical settings.
个性化营养可定义为针对个体量身定制的饮食建议。近年来,靶向营养的概念不断发展,即向一组表型相似的个体或代谢型提供特定的饮食建议。本研究探讨了聚类分析是否可用于定义代谢型,并制定了一种提供靶向饮食建议的策略。
利用英国国家成人营养调查的数据,采用K均值聚类法,基于代谢健康的四个指标(三酰甘油、总胆固醇、直接高密度脂蛋白胆固醇和葡萄糖)对896名参与者进行聚类分析。基于生化特征、人体测量学和血压,开发了一种决策树方法,为每个聚类提供靶向饮食建议。通过与人工编制的个性化饮食建议(99名参与者)进行比较,检验了该建议的适用性。两种方法的平均匹配度为89.1%,三分之二的参与者匹配度为100%。
个性化方法与靶向方法之间具有良好的一致性,证明了该框架提供靶向饮食建议的能力。这种方法有可能成为临床环境中提供靶向营养的一种快速且新颖的方法。