When prisons force-fed people on hunger strikes, they do so by painfully inserting a tube down their esophagus and into their stomach. The prisoner will often choke and vomit while this happens. Sometimes they fuck up and accidentally (or “accidentally”) pour the liquid into the prisoner’s lungs, which tends to be fatal.

Source: https://www.ncbi.nlm.nih.gov/books/NBK385298/

I think your biggest obstacle here is that it’s nearly impossible to force someone to eat solid food because they have to voluntarily chew and then voluntarily swallow the food.

If you shove the solid food down their throat, they’ll suffocate before dying of overeating.

If you have pre-chewed food and try to force it down, you’re more likely to drown the person or cause them to choke, depending on the consistency of the food. Every person swallows a different portion size and unless you can get the portion correctly and somehow get them to swallow, only then would you be successful at this.

But that is quite the challenge.

So going to have to say so impossible that it’s unrealistic.

I take it you haven’t watched the 1995 film “Seven”, the killer does both as I recall. Check it out, I suspect you will like it.

Force-feeding has also been practiced by various prisons and ‘hospitals’ as a way of dealing with hunger strikes. It’s not precisely overfeeding, but it often takes the form of torture.

There are also accounts of forcing the eating of non-food and undesirable food. Again as a form of torture. I think it is featured in some of de Sade’s works.

umm are u about to kill someone??