The plants can be deficient in certain things, especially fat soluble vitamins that come from meat and from essential amino acids.

植物中缺乏某些物质,特别是脂溶性维生素,那些只能从肉类和必需氨基酸中获得

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

They're water soluble and fat soluble vitamins that look like this, and the difference between the two is that the fat soluble vitamins when they're ingested, gets stored in the body fat primarily in the liver.

分为脂溶性维生素和水溶性维生素,像这样,二者的区别在于,脂溶性维生素一经摄取,大多都储存在肝脏的脂肪中

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

There can be a supply of them, a storehouse of them that can build up in the body, and so day-to-day fluctuations become less of a problem with fat soluble then water soluble vitamins, because the body can go grab them from a storage depot, if you will.

从而在体内建立起一个供应源,一个脂溶性维生素仓库,这样一来,相比起水溶性维生素,脂溶性维生素的浓度不会每天剧烈波动,因为机体可以任意取用体内的储存

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选