The majority of dogs will reach their appropriate size and weight by the 12 month period. However, American Staffordshire Terrier Growth continues throughout their second year of life and in some cases of male American Staffordshire Terrier's, doesn't stop until they are around three years old.
The American Staffordshire Terrier is a highly energetic dog, meaning that their diet must be tailored around this to ensure Growth is maintained at a steady level. Large, regular meals are a must, however it must be noted that the American Staffordshire Terrier will eat continually, regardless of whether it is hungry or not. Therefore a record must be kept of feeding times and how much was fed to ensure that they aren't overfed and develop health complications.
The best diet for the American Staffordshire Terrier, to aid with their continued Growth rate, is a completely fresh, homemade one. Low in carbohydrates and high in fibre, fresh meat and fish, mixed with vegetables and whole foods such as wheat and rice will ensure that the American Staffordshire Terrier's grow both healthily and to their appropriate size.