Kittens under three months old should primarily be fed formula, as their digestive systems are not yet fully developed. Just like human babies, complementary foods are typically introduced around four months of age. Kittens are living beings too, so kitten formula specifically formulated for kittens under three months old should be chosen. 
For example, imported high-quality goat milk powder for kittens has a good taste and is rich in nutrients, making it the best substitute for breast milk. Kittens over three months old can be fed semi-liquid foods such as millet porridge, nutritional rice cereal, and softened cat food.
Some cat owners feed their kittens meat and cat food before they are three months old. This often results in vomiting, diarrhea, and bloody stools in the kittens. They only seek help when the kitten has problems, and the worst outcome is that their ignorance leads to the kitten's death.
Adult cats can't be fed whatever they want. Just imagine if we humans ate too much meat and oily food all the time, could our stomachs handle it? If you frequently feed your cat meat, the oily food on our tables will definitely be too much for them. Besides, cats have very low salt requirements.
Proper feeding involves feeding your cat at regular times and in fixed amounts each day, avoiding overfeeding to prevent indigestion.
Never feed your cat food from the dining table. You can feed your cat high-fiber foods, such as beef, chicken breast, or fish, two or three times a week.
You can give your cat some probiotics at home to help regulate its gut health and promote digestion.
