Hi I don’t know if I can help but my dachshund puppy was sent home from the breeders on Royal Canin and I took one look at the ingredients and decided to change foods. It didn’t know what to switch to and after a lot of research and advice I switched him over a two week period to Acana Puppy & Junior and so far he has been fine on it, he gobbles it down fast and seems to like it. It is a Canadian brand and I liked the natural ingredients, fresh chicken etc he only thing that may cause a prob for your lab could be the oats but it is worth taking a look.
Good luck
