Salt reduction is one of the effective strategy for chronic non-communicable disease control and prevention recommended by World Health Organization. Research evidences on salt reduction emerge recently and some issues remain controversial. With the aim of providing reference for the future salt reduction action, this article reviewed the current evidence and strategies on the source of salt intake, the relationship between salt and health, the cost-effectiveness of salt reduction, as well as the targets and strategies of salt reduction. It also elaborated the main controversial issues in salt reduction, including salt reduction in population, evaluation method of salt intake, substitute salt, iodine intake, and the effectiveness of salt reduction strategy. The international and internal salt reduction activities were introduced as well.
减盐是WHO推荐的防控慢性病的有效策略之一，关于减盐的研究证据层出不穷，有些问题尚存争议。本文综述了人群食盐摄入现状、盐的摄入来源、盐与健康的关系、减盐的成本效益、减盐目标与策略的相关研究证据，对目前争议的主要问题，包括是否应该全民减盐、盐摄入量的评估方法、该不该推广低钠盐、减盐是否会影响碘的摄入、有效的减盐措施等进行阐述，并介绍了国内外相关减盐行动，以期为今后开展减盐行动提供参考。.
Keywords: Chronic non-communicable disease; Intervention strategy; Salt reduction.