Research overview: niacin, fatty acids, and other carnivore-dependent nutrients

Beyond taurine and arginine, cats depend on several other nutrients in preformed, animal-derived forms, and this overview reviews them. Cats have a limited ability to synthesise niacin from tryptophan and to make certain long-chain fatty acids such as arachidonic acid, so they require these directly from animal tissue, adding to the list of nutrients that a meat diet reliably supplies but a plant diet does not. Researchers established these needs through nutritional studies. Why it matters: this cluster of dependencies reinforces that obligate carnivory is not a single quirk but a suite of lost biosynthetic pathways, each harmless on a prey diet and each a hazard if cats are fed inappropriately. Together they explain why feline nutrition is so exacting and why properly formulated, meat-based diets are essential to cat health.