Based on the appearance of their stool, it doesn't look dietary to me or even toxin related. It looks more like a bacterial cause even more so than a parasitic cause. There are a lot of things like cocci, other protozoans, that cause issues.
Curious, would you be willing to try a fairly--experimental--technique, lol? Get your hands on some black cumin seed OIL. I can advise on how to use it from there. This stuff knocks everything out!!
Curious, would you be willing to try a fairly--experimental--technique, lol? Get your hands on some black cumin seed OIL. I can advise on how to use it from there. This stuff knocks everything out!!