Yes, in civil war days, i am told they did this regularly, using predigested formulas.
This story must be told in person. For best results the story teller has to practice talking through his teeth. A co-worker who had served in WW-2 told this story for the truth. But after hearing it, we all laughed and realized we had been played. We were cleaning up after a railroad train derailment. I was a pole lineman, stretching open wire phone lines on fat glass insulators. That evening they were telling old war stories and he started in with this one, here.
They were digging fox holes and trenches in France. That night he needed to get out and waste a load. He was in the wrong place at the wrong time and received a rifle butt in the teeth, breaking his jaw. Tensions were high.
2 days later he was hauled off and over rough terrain, you see. ( His old face really was disfigured) Eventually they repaired his face as best they could, wiring his mouth shut. They had been giving him minimal nutrition up his back side. Now he starts talking as with his teeth wired shut, again complaining and moaning about every thing. When as if appearing in a dream, a young nurse offers him some cooled coffee. Still talking with his teeth wired shut, “Oh sweetheart, could you please. Yes, that might do wonders. Bless your heart” Getting him rigged up for a rectal infusion, he was beside himself with anticipation. Holding her funnel high to give him drink, she began to pour it into him. But almost immediately, he was cursing again and sputtering, “Nurse, nurse! Stop, stop stop!!" She, sweetly with a high pitched voice of innocents: "Oh no, too hot?" she sympathizes and apologizes. He with more cursing, “No! More sugar!” Dead silence in the bunk car and all looking at him with, “What?” Then everyone but me, the youngest lineman, busted out in a big, Hee Haww. I pretended to laugh. But it was only as we were, clickety--clack on our way back, i re-lived it all and understood, “if he knew enough to have a taste for coffee in his ass, he was a regular ass drinker, knowing it all as he always did.” Then even later, i realized they were entertaining me, as to bring me into the gang. I wish i could have written down, all their goofy fights and escapades back then. But was so focused on just being in the right place at the right time, most of it just slipped away in the next month.