An assessment of the nutritional adequacy of scientifically published, plant-centric, modelled diets from a nutrient bioavailability perspective

从营养生物利用度的角度评估科学发表的、以植物为中心的模拟饮食的营养充足性

• 批准号: 1944970
• 金额: --
• 依托单位: University of Nottingham
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1944970
• 关键词: assessment; nutritional; adequacy; scientifically; published

Sustainable diets are intended to address the growing environmental and health concerns surrounding current food production and consumption patterns. Many of the proposed strategies for sustainable diets advocate a switch to predominantly plant based diets. The nutrient profiles of these diets have been modelled using current datasets of food nutrient content and public health recommendations. Proponents state that these plant-based diets are nutritionally replete and suitable for people of all life stages.However, nutrient bioavailability and the amino acid profile have rarely been considered in the nutrient modelling of plant-centric diets. Numerous factors can affect the bioavailability of essential nutrients, such as the food matrix, presence of anti-nutritive compounds, storage, processing and cooking methods. Further, indispensable amino acids are often limited in plant sources of protein and are less digestible than those found in animal derived foods. In addition, there can be inherent variations in peoples ability to digest, absorb and metabolise nutrients as a result of life stage or existing illnesses.This project will use a combination of existing data and laboratory techniques to assess the amino acid profile and nutrient bioavailability aspects of scientifically published, plant-centric, modelled diets. The purpose of this research is to determine whether adherence to these modelled diets in their current form is likely to increase risk of nutrient deficiency. If this is found to be the case, the aim is to identify modifications that will address any nutrient inadequacies. Any suggested refinements to the current plant-centric modelled diets would be made with consideration for all four domains of sustainable diets: nutrition, society, economics and the environment.

可持续饮食旨在解决围绕当前粮食生产和消费模式日益增长的环境和健康问题。许多提出的可持续饮食战略主张转向以植物性为主的饮食。这些饮食的营养概况已经使用当前的食物营养含量数据集和公共健康建议进行了建模。支持者指出，这些植物性饮食营养充足，适合所有生命阶段的人。然而，在以植物为中心的饮食的营养模型中，很少考虑营养的生物利用率和氨基酸分布。许多因素会影响基本营养素的生物利用率，例如食物基质、抗营养化合物的存在、储存、加工和烹饪方法。此外，必需的氨基酸通常在植物来源的蛋白质中是有限的，而且比动物来源的食物更难消化。此外，由于生命阶段或现有疾病的影响，人们消化、吸收和代谢营养的能力可能存在内在差异。该项目将结合现有数据和实验室技术，评估科学发表的、以植物为中心的模拟饮食的氨基酸谱和营养生物利用率方面。这项研究的目的是确定坚持目前形式的这些模型饮食是否可能增加营养缺乏的风险。如果发现是这种情况，目标是确定将解决任何营养不足的修改。对目前以植物为中心的模式饮食的任何建议都将考虑到可持续饮食的所有四个领域：营养、社会、经济和环境。