at the University of North Carolina, did look at this.

所做的一项调查关注到了这个问题
What they did was they looked at the presence of at least

他们分别观察了白人居民区和
one supermarket in white neighborhoods and black neighborhoods.

黑人居民区的至少一家超市
They found that the number of people who limit their fat intake

他们发现如果在居民区有家特大百货市场
is higher in these black neighborhoods

那么控制热量摄入的人数
if there is a full service supermarket in the neighborhood.

在黑人居民区更高
These people in the white neighborhoods,

白人居民区的人
they're more likely to have access to these kind of foods anyway;

无怎样都更容易接触到同样的食物
but when a supermarket goes into a black neighborhood,

但是当超市进入黑人区
the number of people

开始限制热量摄入的
who start limiting the fat in the diet goes up.

人数增多了
That's a pretty significant difference there,

两者间的差距可谓意味深长