The appropriate portion size for an American Shorthair cat depends on several factors such as the cat’s age, weight, activity level, and overall health. However, there are some general guidelines that can help you determine the right portion size for your cat.

A healthy, adult American Shorthair cat should be fed two to three meals a day, with each meal being about 1/3 to 1/2 cup of dry food or 3 to 5 ounces of wet food. If your cat is overweight, feed smaller portions or feed them fewer calories. If your cat is underweight, feed them larger portions or feed them more calories.

It is also important to consider the cat’s age when determining portion size. Kittens will require more frequent, smaller meals throughout the day, while senior cats may need smaller, more frequent meals to help them maintain their weight.

Additionally, it’s crucial to monitor your cat’s weight and adjust their portions accordingly. Overfeeding your cat can lead to obesity, which can lead to several health problems, such as diabetes, heart disease, and joint problems. On the other hand, underfeeding your cat can lead to malnutrition and can cause health problems as well.

It’s also essential to factor in your cat’s activity level. If your cat is very active, they may need more food to maintain their energy levels. Conversely, if your cat is less active, they may need less food to prevent weight gain.

In conclusion, determining the right portion size for your American Shorthair cat is important to ensure they receive adequate nutrition and maintain their weight. It’s essential to consider your cat’s age, weight, activity level, and overall health when determining the appropriate portion size. If you’re unsure, consult your veterinarian for guidance.