There appears to be only one main health concern for the NAID, which is hip dysplasia. (animalso.com)
The Flat - Coated Retriever main health concerns are cancer, bloat, hip and elbow dysplasia, entropion, distichiasis, micropapilla, glaucoma and progressive retinal atrophy. (petguide.com)
Here are the Pocket Pitbull's main health concerns along with how diet can help prevent or alleviate them: (animalso.com)