对于大多数人而言，碱性水并不比白水更好。
作为碱性水出售的瓶装水可能添加有营养物质以达到碱性 pH 值，须受美国食品药品管理局的监管。
碱性水的 pH 值比普通自来水高。因此，碱性水的支持者认为其可以中和血液中的酸。有人说，碱性水有助于预防癌症和心脏病等疾病。但还需要更多研究来证实这些观点。
一些研究还表明，碱性水可能有助于减缓骨量丢失。但还需开展进一步研究，以确定碱性水是否会影响整体骨密度，以及这种益处是否能长期持续。
显示参考文献
- FDA regulates the safety of bottled water beverages including flavored water and nutrient-added water beverages. U.S. Food and Drug Administration. https://www.fda.gov/food/foodborneillnesscontaminants/buystoreservesafefood/ucm046894.htm. Accessed March 21, 2022.
- Fenton TR, et al. Systematic review of the association between dietary acid load, alkaline water and cancer. BMJ Open. 2016; doi:10.1136/bmjopen-2015-010438.
- Mousa HAL. Health effects of alkaline diet and water, reduction of digestive-tract bacterial load, and earthing. Alternative Therapies in Health and Medicine. 2016;22:24.
Original article: https://www.mayoclinic.org/zh-hans/healthy-lifestyle/nutrition-and-healthy-eating/expert-answers/alkaline-water/faq-20058029