And so what happens then is when the yields rise,

当产量上涨时
again Pollan is being quoted here,

这又要引用鲍兰的话
the market gets flooded with grain and its price collapses.

市场上粮食供应过多进而价格下滑
As a result there's a surfeit of cheap calories,

以至于有过量的廉价粮食
a clever market sooner or later

一个够精明的市场
will figure out a way to induce us to consume.

迟早会想出方案诱导顾客消费
An example of one consequence of this is

以高果糖谷物糖浆
the production of high fructose corn syrup.

高果糖谷物糖浆的生产为例
As you know, high fructose corn syrup is in a great number of foods.

众所周知大量食物含高果糖玉米糖浆
It has certain physical properties that make it attractive to

它的某些物理性质受到食品工业的青睐
the food industry, and you can see those listed here

如图所示
and it's a very inexpensive high potency sweetener.

而且作为高效甜味剂价格也低廉