It is next to impossible to find any kind of supplement/vitamin that isn't made in China. Many of the pet foods that contain additives of this sort have hidden ingredients made in China because that's where the additives come from.
We feed Nature's Logic, a kibble that has no added supplements or rice ingredients (which can contain arsenic). It is a total nutrition food. The ingredients come from US, New Zealand, Australia, Canada, and Europe. They also require that their vendors can guarantee that the ingredients do not come from China, and that they are tested to be GMO-free and contain no chemical preservatives, herbicides, or insecticides.
There is so little waste produced by this food, that elimination is very compact. Sorry, TMI. But hubs can bag it without

ing.
Nature's Logic -