As we have already noted, with agriculture and sedentism came diets too closely centered on a single crop, such as wheat in the Old World and maize in the New, and although sedentism encouraged population growth, such growth seems to have been that of a “forced” population with a considerably diminished nutritional status.

As we have already noted 为传统语法中的非限制性定语从句，as指代主句内容，并在从句中作宾语。这种定语从句可以位于句首、句中或句末。

主句为并列句，由and 连接。

第一分句为倒装句：with agriculture and sedentism came diets too closely centered on a single crop, such as wheat in the Old World and maize in the New, 恢复正常语序则为：

diets too closely centered on a single crop, such as wheat in the Old World and maize in the New，came with agriculture and sedentism,

第二分句为带有一个让步状语从句的主从复合句：

 and although sedentism encouraged population growth, such growth seems to have been that of a “forced” population with a considerably diminished nutritional status.