But in the context of this article, the point was simply that if you eat more or less anything you will get most of the different general food types you need (s

But in the context of this article, the point was simply that if you eat more or less anything you will get most of the different general food types you need (salad, protein, fibers, carbs) and thus you will most likely get what you need. Vegans trying to find substitutes for some of those general food types doesn't mean they end up being more diverse just that they have to look at more alternatives but the body doesn't really care if you eat iceberg and romain and baby spinach it cares that you eat fibers and protein and minerals. I am not an expert it just seems to me that by not excluding things from your diet like meat you are getting a for much less (eating meat gives you not just protein but ex. iron) Things that other protein substitutes doesn't necessarily give you.