What is the ruling on eating feces in Ramadan, and does it invalidate the fast? And why does it invalidate the fast even though it is not food?

Consuming feces and other impure substances is forbidden by Islamic law and naturally repulsive, as these are considered abhorrent and prohibited. There is also a consensus among the Muslim community regarding the impermissibility of consuming impure substances. Furthermore, eating feces invalidates the fast, because anything that reaches the stomach of a fasting person, whether it is typically eaten or not, nullifies the fast.