Cats typically eat egg yolks every 3-5 days, but the exact frequency depends on the cat's age, health condition, and dietary habits. While egg yolks are beneficial for a cat's coat, excessive consumption can lead to indigestion, diarrhea, and other symptoms. Furthermore, egg yolks contain high levels of cholesterol, and excessive consumption can harm a cat's health.

Occasionally feeding cats egg yolks can be beneficial, as they provide protein and the lecithin in egg yolks can help improve their coat. However, feeding them too frequently is not good. Too many egg yolks can cause cats to experience heatiness (a concept in Traditional Chinese Medicine), and the cholesterol in egg yolks can potentially damage their liver function and cause elevated cholesterol levels.