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钙是人体含量最多,与生理功能关系最密切的元素之一,医学家发现钙的摄入不足而导致钙代谢失衡,是引起人类各年龄组多种疾病的重要因素。缺钙对健康的不良影响已成为令人瞩目的世界性问题。许多人开始关心补钙以求防病健体,但是为什么补钙以及如何补钙,还需进一步弄清其中道理,以免乱补造成不良后果。人体钙知多少成年人体内钙的总量约为700～1,400克,其中99.7％以上的钙与磷结合成羟磷灰石的形式构成骨盐,存在于骨骼和牙齿中,只有0.3％以下的钙分布在体液和软组织中。哺乳动物细胞浆中钙的含量很低,而细胞体内的线粒体却含量较高,这是因为线粒体有很强的摄取和储存钙的能力,线粒
Calcium is one of the most abundant elements in human body and closely related to physiological functions. Scientists find that calcium intake is not enough to cause calcium metabolism imbalance, which is an important factor that causes many diseases of all ages in human beings. The adverse health effects of calcium deficiency have become a conspicuous worldwide problem. Many people begin to care about calcium supplements in order to prevent illness and healthy body, but why calcium and how calcium, need to further clarify the truth, so as to avoid indiscriminate make up the adverse consequences. Body Calcium How many adults know about 700 to 1,400 grams of calcium in their body, of which 99.7% are calcium and phosphorus bound to form hydroxyapatite in the form of bone salts, found in bones and teeth, with less than 0.3% Calcium is distributed in body fluids and soft tissues. Mammalian cytoplasm has a very low level of calcium but a high level of mitochondria in cells because of the strong ability of mitochondria to uptake and store calcium.