Every study I have ever looked at shows vegetables to be health-supporting. (Even factoring in nightshades and goitrogens).
If you ate every meal with your base layer being vegetables, then the next rung being your meat, fish, fowl, or eggs, then finally healthy fat, you'd be good for life.
Fruit is another story. There's lots of fructose (sugar) in modern fruits, so I would stick 1 or 2 servings at most of berries or melons.
My .02 cents.