Hi mommy0f3pigs-
If your pittie is already 30lbs at 14 weeks, he will most certainly need a large breed puppy food. Mind you, just because a food claims to be for “all life stages” does NOT always mean it is suitable for large breed puppies.
The two brands your vet recommend are actually the two best brands for large breed puppy foods on the market because both companies are the worlds leaders in research of large and giant breed puppy growth and development. If you truly do not want to use one of their LBP formulas, I would look at Dr.Tims Kinesis, Wellness, NutriSource or Fromm.
He is likely itchy from the environment change from one state to the next. When I brought my pit home from north of my state to south east he devloped a staph infection from the change in environment. It went away with antibiotics and never came back. He may need more time to adjust. Unfortunately feeding him exotic proteins and grain free etc now can’t prevent allergies. I did that too on the recommendation of well meaning but uneducated people I worked with and on here and my pittie developed food sensitivities to duck, beef, lamb and peas. Duck is considered exotic and peas are in almost every grain free food. Unfortunately he is just prone to allergies due to poor breeding. Sometimes these things can’t be helped, especially in pitbulls because of the over breeding problem.
