Chewing eggshells is read as the consumption of hollow speech and the internalizing of fragile falsehoods. This dream signifies a period where a person is forced to digest what is structurally unsound. The act of breaking something meant to protect a life to reach a void indicates a struggle with deception.
The brittle nature of the symbol suggests that the intellect is occupied with matters that lack substance. Such a dream points to a situation where the truth is thin and easily shattered. A person finds that the substance they seek is merely a casing for nothingness. The hollow character of the dream remains.
Eating eggshells turns the pretense into a matter of nourishment, meaning the person is actively taking the emptiness into their own being. This action moves the dream from a mere observation of falsehood to a personal absorption of it.
For its more general meaning: Dream about eggshells
In my dream i spit out broken eggshells into my hand.
Your dream indicates negativity and concentration. This dream denotes that you may need to acknowledge the shadow and negative aspects of your personality. You need to concentrate on the more important things and basic necessities in life.