The amount of cat food that an adult cat should eat depends on its weight. A 10-pound adult cat should eat 75-100 grams of cat food per day. However, the amount of food that a cat needs may vary depending on its activity level, metabolism, and other factors.

Adult cats are typically able to regulate their own intake, so it is generally safe to give them free access to food. However, it is important to monitor your cat's weight to make sure it is not becoming overweight or obese.

Kittens have a different nutritional need than adult cats. Their gastrointestinal tract is still developing, so it is important to feed them small, frequent meals. Kittens should be fed 3-4 times a day with smaller portions than adult cats.

Here are some tips for feeding your cat:

• Choose a high-quality cat food that is appropriate for your cat's age and stage of life.
• Feed your cat in a quiet place where it will not be disturbed.
• Monitor your cat's weight to make sure it is at a healthy level.