The American Shorthair inherits the robustness, courage, and hardiness of its ancestors. It has a gentle temperament that doesn't change with environmental or mood swings. Patient, affectionate, and not prone to tantrums or excessive meowing, it's suitable for families with young children. American Shorthairs also have strong immune systems.
American Shorthair cats are also very intelligent. Owners can teach them to respond to their names, stay away from furniture like sofas, and control their food intake. Indoor American Shorthair cats enjoy lying on their owner's lap and receiving affection. They cherish their toys, especially when their owner is away; they will invent various ways to play to keep themselves from feeling lonely. American Shorthair cats enjoy interacting with other animals, including birds and dogs. Below are some feeding and care methods for American Shorthairs that I found: 
1. Feeding method
It's important to establish a routine of feeding your American Shorthair cat at a fixed time and place. Also, be aware that younger cats need more frequent and larger meals, typically at least four times a day.
Adult cats only need to be fed twice a day, once in the morning and once in the evening.
2. Feeding amount
The amount of food should be determined based on the American Shorthair cat's age, size, activity level, and temperament. You can refer to the instructions on the food packaging or consult a veterinarian.
To increase the variety of your pet's diet and protect their dental health, you can try feeding them canned food and dry food in combination or alternately.
3. Food intake control
About 90 percent of cats know how to regulate their food intake to maintain a balanced and slim figure, but you shouldn't let them eat whatever they want.
Obese American Shorthair cats are indeed more prone to health problems. If you want your cat to have a healthy body and ideal weight, in addition to controlling the amount of food, you also need to provide some toys for it to play with and exercise.
Kittens have weak digestive systems, making human food both tempting and dangerous for them. Animal liver, poultry bones, chocolate, onions, and scallions are particularly dangerous for kittens.
4. Drinking water needs
In fact, water is just as important to American Shorthair cats as it is to humans. It is not only an essential element of their diet but also a basic nutrient that is easily overlooked by most owners.
Although cat food contains water, you should still always keep clean drinking water in your cat's water bowl, especially in hot weather. This will prevent it from drinking water from the toilet or searching for water in the kitchen or bathroom.