钙对于人体的重要性不言而喻,我们骨骼和牙齿的健康很大程度上也依赖于这种物质。提到补钙,大部分人的第一反应就是牛奶和钙片。然而实际上,补钙远不是这么简单的事情。在人类历史相当长一段时间内,这两样东西并不普遍。那么在漫长的历史中,广袤的大地上,人类是如何补钙的呢?乳糖酶——有或没有?二战后,美国国际发展计划署选择牛奶来援助那些不发 The importance of calcium for the human body is self-evident, and the health of our bones and teeth is also largely dependent on this substance. Mention calcium, most people’s first reaction is milk and calcium. However, in fact, calcium supplementation is far from such a simple matter. In the history of mankind for a long period of time, these two things are not common. So in the long history, on a vast land, how human beings calcium? Lactase - with or without? World War II, the United States International Development Planning Department to choose milk to help those who do not