Cat Nutrition Calculator
Calculate your cat’s complete daily nutritional targets
Weight (lbs)
Life Stage
Cat Nutrition: What Do Cats Actually Need?
Cats are obligate carnivores with unique nutritional requirements. Unlike dogs or humans, they cannot synthesize certain nutrients and must obtain them from animal-based foods. Our cat nutrition calculator gives you daily targets for energy, protein, fat and carbohydrates.
Essential Cat Nutrients Guide
| Nutrient | Recommended % of kcal | Why It Matters |
|---|---|---|
| Protein | 40-55% | Muscle, enzymes, immune function |
| Fat | 30-45% | Energy, coat health, fat-soluble vitamins |
| Carbohydrates | Under 10% | Not required; excess linked to obesity |
| Taurine | Essential amino acid | Heart and eye health; must come from diet |
| Arachidonic acid | Essential fatty acid | Skin, reproduction; cats can’t synthesize |
| Vitamin A | Preformed (retinol) | Vision; cats can’t convert beta-carotene |
Why Cats Need Taurine
Taurine is an amino acid found only in animal tissue. Cats cannot synthesize it themselves and must get it from their diet. Taurine deficiency leads to dilated cardiomyopathy (heart disease) and retinal degeneration. All complete commercial cat foods must contain taurine — it’s one reason cats cannot eat dog food long-term.
FAQs
What nutrients are cats most commonly deficient in?
Taurine, arachidonic acid, Vitamin A and niacin are the most common nutritional deficiencies in cats fed inappropriate diets. All are found in adequate amounts in AAFCO-complete commercial cat foods. A routine blood test can identify deficiencies.
Can cats be vegetarian or vegan?
No. Cats are obligate carnivores and cannot thrive on plant-based diets. They lack the metabolic pathways to convert plant-based precursors into essential nutrients like taurine and arachidonic acid. A meat-based diet is a biological necessity, not a preference.
Conclusion
Use our cat nutrition calculator to understand your cat’s daily nutrient targets. Always feed an AAFCO-complete food and combine with our calorie calculator and food calorie guide for a complete nutrition system.
Questions about cat nutrition? Leave a comment below!