These should be the cornerstone of a healthy diet. Spinach and beets have calcium binders in them, so they should be fed in moderation. Cabbage, broccoli, Brussels sprouts, bok choy, cauliflower, kale, and other members of the cabbage family might cause thyroid problems if fed exclusively but are nutritious in moderation. Mulberry leaves are good if available. Lettuces, including Romaine have little nutritional value.
Figs are one of the few fruits rich in calcium.
Apples, apricots, dates, grapes, kiwis, melons, peaches, papayas, pears, plums, prunes, raisins, strawberries, and raspberries are all fine in small amounts. All are acceptable in small amounts. All the dry chows need to be soaked first in water until soft. Feed a wide variety of these foods, not just a few. Do not feed cat food.