Yes, I would she may have to get used to it....what I do is keep it in the same family or like someone else said do the life stages. Diggy is hypo glycemic so I have to constantly give hime anything he will eat...right now we have Innova Evo in one bowl and Chicken Soup for the puppy lovers soul. I am feeding the evo til it runs out as it is a great food but i dont like the amount of protein in it. AT the top pf this forum is a place to request sample....with these many sample I recieved I actually use them as treats. They love it. A puppy is okay on adult food and vice versa for adult on puppy. The adult may gain weight but if it starts happening you'll know why
Like if you decide on chicken soup brand get the puppy and adult that way its basically the same formula and you most likely wont upset their bellies.....let me know how this helps you and if you have anymore questions just pm me! Take care!