Members' NAVLE study guide

Feline Malnutrition and Nutrient Deficiencies | NAVLE

1,437 words 7 min read Reviewed November 15, 2026

Malnutrition in cats covers deficiency, imbalance and excess. Cats are obligate carnivores with fixed requirements for several nutrients that dogs and people can make for themselves, so a diet that is "complete" for a dog or a plant-based home diet can cause serious disease. Anorexia in any cat is also a form of malnutrition and carries its own risks.

Key facts

Malnutrition at a glance
  • Species and system: cat; multisystemic nutritional disease.
  • Cat-specific requirements (MSD): taurine, arginine, arachidonic acid, preformed vitamin A, niacin, and a high protein intake.
  • Classic deficiency syndromes: taurine (dilated cardiomyopathy, central retinal degeneration), thiamine (neurologic signs, ventroflexion), vitamin A excess (cervical bone proliferation in liver-fed kittens).
  • Complications of starvation: hepatic lipidosis and refeeding syndrome.
  • Assessment: body condition score and muscle condition score, which are independent.

What's inside

12 sections in the full guide
  1. Key facts
  2. How the NAVLE tests this
  3. The cat as an obligate carnivore
  4. Clinical signs
  5. Nutritional assessment and diagnosis
  6. Starvation, anorexia and cachexia
  7. Differential diagnoses
  8. Treatment and management
  9. Prognosis
  10. Quick review
  11. Test yourself
  12. References
The full guide also has 3 tables, 3 self-test questions and 6 references, available to NAVLE members.

Read the full study guide

The full guide is part of every NAVLE plan, with diagnosis and treatment tables, figures, a quick review and self-test questions. Start a free trial to try the question bank, or log in if you are already a member.

Read the free overview article A shorter, free article on Malnutrition on the NavleExam blog.

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