Many plants make their seeds and die. So we can use all the seeds and use nuts. Root vegetables make themselves and die so we can use all root vegetables. Legumes also grow their seed pods and die. So with all the seeds, legumes, beans and root vegetables, we could live heathily. This is a vegetarian lifestyle when you add eggs and dairy, vegan without. I fogot to mention all the green leafy vegetables that we can pick some without killing the plant and all the cabbagy plants that die after they make their vegetable.