Cats are obligate carnivores — they must get certain nutrients from animal tissue. Taurine, an amino acid found in meat, is essential; deficiency causes heart disease and blindness. Commercial cat foods are fortified, but homemade diets need careful balancing.
Protein should be the centerpiece, with moderate fat and minimal carbohydrate. Free-choice dry feeding suits some cats but contributes to obesity; measured meals help maintain a healthy weight.
Hydration is a quiet crisis. Cats evolved to get water from prey and often under-drink, raising urinary and kidney risks. Wet food and running fountains encourage intake — especially for male cats prone to blockages.
Life stage matters: kittens need energy-dense growth food, adults need maintenance, and seniors benefit from controlled calories with joint and kidney support. Lifecycle labeling (kitten/adult/senior) guides the choice.
Avoid dog food, raw egg whites, onions, grapes, and unlimited liver. When in doubt about a homemade or raw plan, consult a veterinary nutritionist — guessing can shorten a cat's life.