Silicon was once considered a biologically inert element, but recent research has shown its value for human health.Soluble silicic acid is the available form of silicon in human body. This paper reviews the absorption, distribution and metabolic characteristics of dietary soluble silicic acid in human body, as well as its relationship with human health.Available data show that it has lots of supporting evidences that dietary soluble silicic acid can prevent osteoporosis, maintain vascular health, improve the symptoms of Alzheimer's disease and multiple sclerosis.Its unique crosslinking ability and antagonism to toxic aluminum play a crucial role. In the early stage of human life, there is a strong demand for silicon, and the level of silicon in the aged is generally reduced, suggesting that pregnant women and old people should pay attention to the intake of soluble silicic acid. It is suggested to strengthen the basic and applied research on dietary soluble silicic acid,and gradually establish the relevant nutrition and hygiene standards.
硅曾经被认为是生物惰性元素，但近年来的研究显示其对人体健康具有重要价值。可溶性硅酸是硅的人体可利用形式，本文综述了饮食中的可溶性硅酸在人体的吸收、分布和代谢特点，以及它们与人体健康关系的研究进展。现有资料显示饮食中可溶性硅酸在预防骨质疏松、维持血管健康、改善老年痴呆和多发性硬化症等方面具有较多支持证据。其独特的对生物大分子的交联能力以及对有毒元素铝的拮抗作用是其发挥作用的关键。人类生命早期对硅具有强烈需求，老年人体内硅水平普遍降低，提示孕妇和老年人群需注意可溶性硅酸的摄取。建议加强饮食可溶性硅酸的基础和应用研究，并逐步完善相关营养卫生标准。.
Keywords: Diet; Drinking; Health; Silicic acid.