We eat fish. I know some small fish bones are fried and eaten as food in some parts of the world, and they can be composted for mineral content. I do compost some already, but we don’t have that much space for composting and we do have to worry about rats so not much cooked food goes out that way.
In particular I am wondering:
Are fish bones good calcium supplements for turtles?
Should I consider drying, baking, and grinding as a human calcium supplement?
Are there any other uses I am not thinking about?