Malainey et al. find a possible explanation in late-eighteenth and early-nineteenth century accounts from three frontiersmen who had adapted to lean-meat diets during extended periods in the plains.

马莱内等人在18世纪末和19世纪初的三个前沿地区发现了一个可能的解释，这些前沿国家在平原上长期适应了瘦肉饮食。

Daniel Boone (1734-1820) is the most widely known of American frontiersmen. Daniel Boone is the most widely known of American frontiersmen.

丹尼尔·布恩（1734-1820），肯塔基州垦荒先驱，也是美国历史上最著名的拓荒者之一。

Frontiersmen believed teas to be insipid "slops" fit only for the sick and those who, like British Lords, were incapable of bodily labor.

边疆人认为茶是一种稀薄乏味的饮料，只适合病人或不能进行体力劳动的人饮用，例如英国的贵族老爷们。