Why don't cats eat citrus fruits? - briefly
Cats avoid citrus fruits due to their strong aversion to the scent and taste, which is linked to their sensitive olfactory system and natural instinct to avoid potentially harmful substances.
Why don't cats eat citrus fruits? - in detail
Cats avoid citrus fruits due to a combination of biological, evolutionary, and sensory factors. The strong, pungent aroma of citrus fruits, such as oranges, lemons, and limes, is highly unappealing to cats. Their olfactory system is extremely sensitive, and the intense scent of citrus is often perceived as overwhelming or even repulsive. This aversion is rooted in their natural instincts, as citrus fruits are not part of a cat's natural diet in the wild. Cats are obligate carnivores, meaning their bodies are adapted to derive nutrients primarily from animal-based proteins rather than plant matter. Citrus fruits, which are high in acidity and contain compounds like limonene and linalool, can be irritating to a cat's digestive system. Ingesting citrus may lead to gastrointestinal discomfort, including vomiting or diarrhea. Additionally, some compounds found in citrus, such as psoralens, can be toxic to cats in larger quantities, causing symptoms like drooling, lethargy, or even more severe health issues. Cats also lack the taste receptors for sweetness, which further diminishes any potential interest in fruits like citrus. Evolutionarily, cats have developed a cautious approach to unfamiliar foods, as consuming unknown substances could pose risks in their natural environment. This instinctual behavior, combined with their sensory preferences and dietary needs, explains why cats typically avoid citrus fruits altogether.