Briefly, Kant argued that to lack existence is not to be deficient in a property.

简单地说，康德认为，缺乏存在是不可缺乏的一财产。

Here are nutrients that may be deficient in a vegetarian diet and how you can get these nutrients from nonmeat sources

以下列出了在素食饮食中可能摄取不足的营养物质，并给出了弥补方法