A healthy diet is generally a sustainable diet. This point is illustrated in the large body of work exploring the interconnections between public health nutrition and environmental issues associated with food choices. Unhealthy diets and their contribution to diet-related noncommunicable diseases (NCDs) are receiving growing attention from international and national policy-makers. Dietary guidelines that inform consumers about food choices and that shape policy actions to enable choices in line with the guidelines are foundational to both national and international responses to diet-related NCDs. The purpose of this paper is to argue for holistic dietary guidelines as part of national and international policy responses to diet-related NCDs. Holistic dietary guidelines simultaneously address health and environmental sustainability to address common causes and harness synergistic solutions. They are based on evidence, and free of conflicts of interest. Moreover, they act as a policy springboard for effective regulatory action to change the food environment and not just as an education tool. Holistic dietary guidelines raise potential concerns under international trade and investment law, for example, to the extent that such guidelines promote local products as a means of supporting both nutritional and environmental health. These issues will be examined in more depth in a second paper in this special issue that follows on from this one.

中文翻译：

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可持续健康食品的选择：“整体”饮食指南作为国家和国际政策跳板的承诺

健康的饮食通常是可持续的饮食。在探索公共卫生营养与与食物选择相关的环境问题之间的相互联系的大量工作中可以说明这一点。不健康的饮食及其对与饮食有关的非传染性疾病（NCD）的贡献正日益受到国际和国家政策制定者的关注。饮食指南可以使消费者了解食物选择，并制定政策行动以使食物选择符合指南，这是国家和国际对与饮食相关的非传染性疾病做出回应的基础。本文的目的是主张整体饮食指南，作为对饮食相关非传染性疾病的国家和国际政策对策的一部分。整体饮食指南同时解决了健康和环境的可持续性问题，以解决常见原因并利用协同解决方案。它们基于证据，没有利益冲突。此外，它们不仅是教育手段，而且是有效监管行动以改变食品环境的政策跳板。整体饮食指南在国际贸易和投资法下引起了潜在的关注，例如，在某种程度上，此类指南宣传了本地产品，以支持营养和环境健康。这些问题将在此后的第二期特刊中进行更深入的研究。它们不仅是一种教育手段，而且是采取有效监管行动来改变食品环境的政策跳板。整体饮食指南在国际贸易和投资法下引起了潜在的关注，例如，在某种程度上，此类指南宣传了本地产品，以支持营养和环境健康。这些问题将在此后的第二期特刊中进行更深入的研究。它们不仅是一种教育手段，而且是采取有效监管行动来改变食品环境的政策跳板。整体饮食指南在国际贸易和投资法下引起了潜在的关注，例如，在某种程度上，此类指南宣传了本地产品，以支持营养和环境健康。这些问题将在此后的第二期特刊中进行更深入的研究。