Citrus Bad For Cats. What citrus oils are bad for cats? Your cat can safely eat strawberries, peaches, blueberries, pears, or watermelon in minimal quantities.

Citrus fruits are toxic to cats because they contain essential oil extracts such as limonene and linalool, as well as psoralens. It seems cats don't like lemon or orange. Many liquid potpourri products and essential oils, including oil of cinnamon, citrus, pennyroyal, peppermint, pine, sweet birch, tea tree, wintergreen, and ylang ylang, are poisonous to cats.