🐱

Cat Nutrition

Q: How many meals a day should a cat eat?

For adult cats, 2 meals a day (morning and evening) is the ideal standard. Kittens (up to 6 months) require 3-4 meals because their small stomachs cannot handle large portions. Free feeding (always full bowl) is not recommended as it leads to obesity. The NRC 2006 guideline recommends dividing the energy requirement into 2 equal meals.

Q: Is dry food or wet food healthier?

Both have advantages. Wet food: With 70-80% moisture content, it supports urinary system health and prevents struvite and oxalate crystals. Since cats, being natural hunters, have a low thirst drive, wet food fills this gap. Dry food: More economical, contributes to dental health, and is practical. The best approach: Combining both — wet food in the morning, dry food in the evening. The FEDIAF 2024 guideline confirms that both forms can be complete and balanced.

Q: Is grain-free food really healthier?

No — this is a common misconception. Grain-free food usually uses peas, lentils, or potatoes instead of grains, which does not lower the carbohydrate ratio. The 2024 FEDIAF guideline emphasizes that grain is not a mandatory allergen and the main focus is on the total starch ratio and protein bioavailability. Cat grain allergies are extremely rare (less than 1%). Switching to grain-free food without a veterinarian's recommendation is not necessary.

Q: Can cats drink cow's milk?

No. Most adult cats are lactose intolerant. The lactose in cow's milk cannot be broken down in the digestive system and leads to diarrhea, gas, and abdominal pain. Milk is not a basic nutritional source for cats; water is the best liquid option. Commercially available 'cat milk' products are lactose-free and safe, but not mandatory.

Q: Why is taurine so important in cat food?

Taurine is an essential amino acid that cats cannot synthesize in their bodies (dogs and humans can). Taurine deficiency leads to dilated cardiomyopathy (heart enlargement), blindness (retinal degeneration), and reproductive problems. The AAFCO 2023 standard requires a minimum of 0.1% taurine on a dry matter basis. High-quality commercial foods meet this requirement; taurine supplementation is essential in homemade diets.

Q: Is special food necessary for neutered cats?

Yes, it is recommended. After neutering, the metabolic rate drops by 20-30% and the risk of obesity increases. Sterilized cat foods contain: lower calorie density, high protein/low fat ratio, and pH control to support urinary health. If regular food is used after neutering, the portion should be reduced by 20-25%. Filter the 'neutered' category in VetKriter's food evaluations.

Q: Are 'by-products' on cat food labels harmful?

No — 'by-product' does not automatically mean low quality. According to the AAFCO definition, by-products include organs such as liver, kidneys, heart, and lungs. These organs are actually rich in high-bioavailability protein, vitamin B12, iron, and taurine. The problem is when the source of the by-product is unclear. 'Chicken by-product' is specific and acceptable, while 'meat by-product' (source unclear) is less preferred.

Q: When should a kitten switch to adult food?

Kitten food is recommended for 12 months for small and medium breeds, and 18-24 months for large breeds (Maine Coon, Ragdoll, etc.). Kitten foods contain higher protein, fat, calcium, and phosphorus — essential for growth. Early switching can lead to growth problems, while late switching can lead to obesity. The transition should be gradual over 7-10 days.

Q: How much water do cats need daily?

A cat's daily water need is calculated as approximately 1 mL/kcal per dry matter consumed. For a 4 kg adult cat, this is about 150-200 mL/day. Cats eating dry food may not drink enough water; therefore, flowing tap water or fountain-like water bowls are encouraging. Insufficient water intake is the most important risk factor for urinary tract diseases (FIC, FLUTD).

Q: What should be the protein ratio in cat food?

The AAFCO 2023 standard sets a minimum of 26% crude protein (on a dry matter basis) for adult cats. However, this is a minimum value; high-quality foods are usually between 35-50%. Cats are obligate carnivores and their energy metabolism relies on protein breakdown. Low-protein diets can lead to muscle loss and weakened immunity. The protein source is also important: animal sources such as chicken, turkey, and fish provide higher bioavailability than plant sources.

Frequently Asked Questions

Scientific answers based on AAFCO 2023, FEDIAF 2024 and NRC 2006 standards, prepared by Doç. Dr. Mehmet ÇOLAK

15 Questions Vet Approved

What will you find on this page? Clear answers to the most frequently asked feeding questions by cat owners, based on current scientific literature. At the end of each answer you will find links to related articles and tools.

For adult cats, 2 meals a day (morning and evening) is the ideal standard. Kittens (up to 6 months) require 3-4 meals because their small stomachs cannot handle large portions. Free feeding (always full bowl) is not recommended as it leads to obesity. The NRC 2006 guideline recommends dividing the energy requirement into 2 equal meals.

Both have advantages. Wet food: With 70-80% moisture content, it supports urinary system health and prevents struvite and oxalate crystals. Since cats, being natural hunters, have a low thirst drive, wet food fills this gap. Dry food: More economical, contributes to dental health, and is practical. The best approach: Combining both — wet food in the morning, dry food in the evening. The FEDIAF 2024 guideline confirms that both forms can be complete and balanced.

No — this is a common misconception. Grain-free food usually uses peas, lentils, or potatoes instead of grains, which does not lower the carbohydrate ratio. The 2024 FEDIAF guideline emphasizes that grain is not a mandatory allergen and the main focus is on the total starch ratio and protein bioavailability. Cat grain allergies are extremely rare (less than 1%). Switching to grain-free food without a veterinarian's recommendation is not necessary.

No. Most adult cats are lactose intolerant. The lactose in cow's milk cannot be broken down in the digestive system and leads to diarrhea, gas, and abdominal pain. Milk is not a basic nutritional source for cats; water is the best liquid option. Commercially available 'cat milk' products are lactose-free and safe, but not mandatory.

Taurine is an essential amino acid that cats cannot synthesize in their bodies (dogs and humans can). Taurine deficiency leads to dilated cardiomyopathy (heart enlargement), blindness (retinal degeneration), and reproductive problems. The AAFCO 2023 standard requires a minimum of 0.1% taurine on a dry matter basis. High-quality commercial foods meet this requirement; taurine supplementation is essential in homemade diets.

Yes, it is recommended. After neutering, the metabolic rate drops by 20-30% and the risk of obesity increases. Sterilized cat foods contain: lower calorie density, high protein/low fat ratio, and pH control to support urinary health. If regular food is used after neutering, the portion should be reduced by 20-25%. Filter the 'neutered' category in VetKriter's food evaluations.

No — 'by-product' does not automatically mean low quality. According to the AAFCO definition, by-products include organs such as liver, kidneys, heart, and lungs. These organs are actually rich in high-bioavailability protein, vitamin B12, iron, and taurine. The problem is when the source of the by-product is unclear. 'Chicken by-product' is specific and acceptable, while 'meat by-product' (source unclear) is less preferred.

Kitten food is recommended for 12 months for small and medium breeds, and 18-24 months for large breeds (Maine Coon, Ragdoll, etc.). Kitten foods contain higher protein, fat, calcium, and phosphorus — essential for growth. Early switching can lead to growth problems, while late switching can lead to obesity. The transition should be gradual over 7-10 days.

A cat's daily water need is calculated as approximately 1 mL/kcal per dry matter consumed. For a 4 kg adult cat, this is about 150-200 mL/day. Cats eating dry food may not drink enough water; therefore, flowing tap water or fountain-like water bowls are encouraging. Insufficient water intake is the most important risk factor for urinary tract diseases (FIC, FLUTD).

The AAFCO 2023 standard sets a minimum of 26% crude protein (on a dry matter basis) for adult cats. However, this is a minimum value; high-quality foods are usually between 35-50%. Cats are obligate carnivores and their energy metabolism relies on protein breakdown. Low-protein diets can lead to muscle loss and weakened immunity. The protein source is also important: animal sources such as chicken, turkey, and fish provide higher bioavailability than plant sources.

AAFCO 2023 recommends a minimum of 9% crude fat (on a dry matter basis) for adult cats. Fat is a dense energy source for cats and is necessary for the absorption of vitamins A, D, E, and K. Arachidonic acid (omega-6) is an essential fatty acid that cats cannot synthesize — it must be obtained from animal fats. Omega-3 (EPA/DHA) is critical for brain, eye, and skin health; fish oil is a good source.

Raw meat diet is controversial. Advantages: High moisture content, unprocessed protein. Risks: Pathogens such as Salmonella, Listeria, E. coli, and Toxoplasma pose a danger to both cats and owners. AVMA and WSAVA do not recommend a raw meat diet. If followed: frozen meat (-20°C for 3 days) must be used, taurine and calcium supplements are essential, and regular parasite checks should be performed.

Cats over 7 years old fall into the 'senior' category. Protein requirements do not decrease; in fact, they may increase (to prevent muscle loss) if kidney function is normal. Phosphorus restriction is important if kidney disease is present. Antioxidants (vitamin E, vitamin C) are beneficial for immunity. Omega-3 and glucosamine supplements can be considered for joint health. Annual veterinary checks are critical during this period.

Pay attention to this order when reading labels: 1) 'Complete and balanced' statement — Compliance with AAFCO or FEDIAF standards. 2) First 3 ingredients — An animal protein source (chicken, turkey, fish) should be first. 3) Crude protein/fat/fiber/ash — Guaranteed analysis table. 4) Additives — Avoid synthetic antioxidants such as BHA, BHT, and ethoxyquin. Natural preservatives (tocopherol, rosemary) are preferred. VetKriter's VetScore system evaluates these criteria objectively.

Strictly avoid: Onions, garlic, leeks (Allium spp.) — hemolytic anemia. Chocolate, cocoa — theobromine poisoning. Grapes, raisins — kidney failure. Xylitol (artificial sweetener) — hypoglycemia and liver failure. Alcohol — central nervous system depression. Avocado — cardiotoxicity. Caffeine — tachycardia, seizures. Raw dough — alcohol production. If your cat consumes any of these, contact a veterinarian immediately.