
IKR The novel described it quite brutally:
The bucket contained all sorts of food waste from the guild. One of the alchemists smiled broadly.
“As expected, trolls have incredible vitality. They don’t get stomachaches and things like that, so they can even dispose of leftover food.”
“It takes care of the trash and makes money. Efficient, right?”
A lump of rotten filth gurgled down the troll's throat. Troll No. 3 writhed in pain, feeling nauseous.
“Ahhhh… … .”
However, he was unable to pull out the pipe directly connected to his esophagus by himself. Troll No. 3 opened his eyes wide in humiliation and misery.
“Oh, I have to feed the other guys too.”
The alchemists took up their buckets and poured them into the other trolls one by one. Soft groans filled the dark cellar.
“uuuuh… … .”
One troll woman burst into tears, but the alchemists simply passed by. A silent scream filled the cellar.
Amidst the inaudible screams and cries, the alchemists conversed.

Chp 68 of manwha is Chp 170 content on Novelbin (translated) and for some reason Chp 151 on fortuneethernal (raws).
>
Be advised this novel hasn't been fully translated but is definitely complete.
If you want to read the novel here's what I recommend doing:
>
Start on Novelbin which has chapters until Chp 225
Switch off to fortuneethernal Chp 208 - you have to MTL (machine translate) the rest; (Click the English option below the 'translate here' function)
>
Happy reading! (^^)
https://novelbin.com/b/the-indomitable-martial-king/chapter-170
https://www.fortuneeternal.com/novel/the-indomitable-martial-king-raw-novel/chapter-151/
god that chapter ending is just depressing…