And then the most surprising thing of all was a study done not long ago, published in 1997 of registered dieticians.

不久前的实验中,让人惊奇的事发生了,在1997年由注册营养学家发表

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

If even the dieticians can't do it accurately what in the world is the average going to do?

如果连营养学家们都无法精确估算,那么普通人究竟该如何去做啊

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

It used to be case that trained people like dieticians would have to sit down and go through one by one by one and do nutrient analysis, but of course the computer helps with that.

过去那些受过专业训练的人,如营养师,不得不坐下来,一项一项仔细查看,并做营养分析,当然,现在有电脑协助来做这些

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

As I mentioned before is one example on the risk for breast cancer in women, so you'd randomly assign half to following their usual diet, the other half to an intervention program where people are prescribed a low fact diet, given counseling and interventions from dieticians and things, and then you look to see what happens for risk as people go forward in time.

我之前提过,这例子研究的是,女性的乳腺癌发病率,你将随机选择其中一半人按一般习惯饮食,另一半人则参与一个干预计划,其中每人都要食用,由营养学家设计推荐的低脂肪菜单,然后再看随着时间推移,被试者的发病率是怎样变化的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选