Glucose also comes from the liver which converts fat and protein into glucose to make sure there is a constant glucose supply even when we are not eating.

• 为了确保即使我们不在吃饭时，也有持续不断的葡萄糖供应，肝也可以通过将脂肪和蛋白质转换成葡萄糖的方式生产葡萄糖。