别想多了，盐不分高低贵贱

Core Viewpoint - A recent investigation revealed that various "trendy salts," including Himalayan pink salt, contain heavy metals and do not meet food safety standards in China, raising concerns about their safety for consumption [1][2]. Group 1: Types of Salt - The main categories of edible salt on the market are sea salt, lake salt, and mineral salt (including well salt and rock salt), with the primary difference being the source of raw materials [2]. - All types of salt undergo similar processing steps, including rough processing and refining, and must meet a sodium chloride content of at least 97% to be considered qualified under national standards [2]. Group 2: Misconceptions about "Trendy Salts" - Claims that certain salts, such as sun-dried salt or bamboo salt, are superior are often exaggerated; the core purpose of salt processing is to remove harmful components to ensure safety [2]. - "Trendy salts" are expensive not due to their nutritional value or quality but because of their rarity and high production or transportation costs [2][3]. Group 3: Health Considerations - The assertion that these salts are rich in over 80 essential minerals is misleading, as over 97% of salt is sodium chloride, making it impractical to rely on salt for micronutrient intake [3]. - The recommended daily salt intake is limited to 5 grams, and increasing salt consumption can lead to health risks such as hypertension and cardiovascular diseases [3]. Group 4: Regulatory Actions - In response to the marketing issues surrounding "trendy salts" and imported salts, market regulatory authorities in the region have taken action, including investigating 12 supermarkets for illegal retailing of imported salt [3].