You can usually buy bones from local farms that sell meat, and they’re really cheap. You can use the bones to make bone broth, which is extremely good for healing your intestinal walls. All you do is boil a big hunk of bones, preferably bones with joints in them so you get some marrow, and let simmer for 2.5-3 hours. Make sure you cover the pot so you don’t lose a lot of the broth through evaporation. And add salt, and spices.