We tried Daisy with Royal Canin Small Dog yesterday teatime. One hour later she was like she had a screw loose. Hyperactive and barking at nothing at all. She growled at our oldest son Joseph who is 16. She has never done or been like that before could this be the food? She is back on Pro Plan this morning and is back to her normal self. We only tried her with it because her puppy is on the Royal Canin Junior food.