In the context of nutrition, the terms 'vegetable' and 'plant' are used interchangeably. As the Wikipedia article on 'vegetable' reads: "In culinary terms, a vegetable is an edible plant or its part, intended for cooking or eating raw."

It seems that this exchange has served no useful purpose. I suggested that we should eat lots of vegetables, and everything that was said in reply to that claim was either irrelevant or relevant but not supported by evidence.