My small terrier-cross has unpickable poo unless she has a fibre supplement. The vet suggested Protexin profibre which has been transformational but it’s really difficult to get her to take it. She has dry kibble and refuses to eat if the profibre is mixed in. I tried crushing it and mixing with raw mince which was a huge success but the amount of mince needed compared to the amount of food she needs each day means this isn’t a long term option. She doesn’t like roast butternut squash so I’m assuming she won’t eat pumpkin. Any ideas on how I can get more fibre into her please?