Should I switch my old dogs diet because of weight loss and vomiting?
My 14 year old cockapoo was the runt of her litter and has an enlarged heart. She's on medication for the enlarged heart and had a lung infection a few months ago that we fixed but has always been very small and typically only eats 1 bowl of food/day. She is noticeably losing weight now and her energy levels are declining because she is eating less and less. She is also vomiting slightly more often than her usual (quite often compared to the average dog). She's also quite anxious and needs certain people around to eat. She's still very involved, happy, and active.
I think it's time to change her diet as she moves into the final stages just to ensure she isn't starving. She has always had some human food as treats (carrots, banana, chicken, rice etc) and seems to have endless appetites for human food and treats just no dog food no matter how many switches we make. I was wondering if it would be helpful to switch her diet to ensure she's eating in her old age. I don't mind putting in the effort to do things like cook chicken or whatnot as well!
TL;DR: my old dog who loves human food and hates kibble is losing weight and I want to switch her diet to help