Arden Grange Tasty Liver Treat Paste For Dogs 75g, with lots of fresh liver and no artificial colours, flavours or preservatives, Arden Grange Tasty Liver Treat is the perfect reward or snack for your dog and can be used in Kong Toys. Tasty liver paste is clean and easy to portion, it is ideal for training. It is naturally hypoallergenic and free from wheat gluten,dairy products, beef and soya.