The WW2 vet I used to take care of couldn't taste or enjoy food either, but I kept him alive when he stopped eating solid foods by a mixture of Sam's Club Bone Broth (comes in 4 to 5 different kinds). He would drink it straight up.
That in combination with the Ensure kept him going. Right before Covid hit he went into a home, and wasted away because doctors, including his daughter were convinced based on studies a person can survive off just Ensure each day. My visits were rare due to covid guidelines, but he was wasting away slowly. It was the lack of protein.
Before he gave up on solid foods, he would eat eggs alot. That's nearly 50% absorption of protein matter. It's less with meat, but other stuff is in meat as well.
He was expected to die quickly when he went liquid only (his choice, his wife was in a panic) but I kept him going a few years. It has to be bone broth, most brands look similar but are not bone broth. It is hard to get a hold of in stkres as it is literally a life and death struggle to get a hold of, as many people need it to survive and walmart doesn't give enough shelf space to it, but you said you order most stuff online and walmart does deliver.
