网传“净水器中加入的阻垢剂会引起骨质疏松” 真相究竟如何？

Core Viewpoint - The spread of misinformation regarding the use of phosphate-based scale inhibitors in water purifiers and their alleged link to osteoporosis has raised concerns among consumers, prompting expert clarification on the actual safety and necessity of these additives [1][3][5]. Group 1: Misinformation and Public Reaction - Social media has seen claims that drinking water containing phosphates can lead to calcium-phosphate imbalance, resulting in osteoporosis and other health issues, causing public confusion and concern about water purifiers [1][3]. - Consumers, such as Zhang and Huang, express uncertainty about the safety of water purifiers after encountering conflicting information online [1][3]. Group 2: Function and Safety of Scale Inhibitors - Water purifiers are designed to remove impurities and contaminants, with various types available, including reverse osmosis systems, which are the most effective [3][4]. - Scale inhibitors, specifically polyphosphates, are used in water purification to prevent membrane clogging by reacting with calcium and magnesium ions, and their usage is minimal, with studies indicating only 6 to 8 grams needed for processing over 20 tons of water [4][5]. Group 3: Expert Opinions on Health Risks - Experts assert that the claim linking scale inhibitors to osteoporosis is misleading, emphasizing that polyphosphates are safe, controlled additives that do not significantly enter the purified water [4][5]. - The human body has mechanisms to manage phosphate levels, and normal consumption of water treated with these inhibitors does not pose a risk to bone health [5][6]. Group 4: Recommendations for Consumers - When selecting water purifiers, consumers should choose products from reputable manufacturers, ensuring they have the necessary health permits and safety evaluations for components like scale inhibitors [6][7]. - It is advised to maintain water purifiers properly, including timely replacement of filters, to mitigate risks associated with contamination and aging equipment [7].