Dogs cannot eat egg whites because egg whites contain protein antigens, which may cause allergic reactions in dogs. Protein antigens are substances that may irritate a dog's immune system, causing an allergic reaction. Allergic reactions may cause symptoms such as red and swollen skin, runny nose, and coughing in dogs. Therefore, to avoid these problems, it is best not to let your dog eat egg whites.
However, dogs can eat egg yolks, which are rich in nutrients, such as protein, fat, vitamin A, vitamin D, etc. Egg yolk can help dogs improve their immunity and strengthen their resistance. However, even if dogs can eat egg yolks, they should not eat too much. The fat content in egg yolk is high. If the dog eats too much, it may lead to obesity and affect the dog's health.
