Why are my eggs smaller? The definitive guide to egg size
                                
                                
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                                    5 min read                                
                            
                                According to poultry experts, the age of a hen is the most common reason for changes in egg size, with young pullets laying smaller "pullet eggs" and aging hens producing smaller eggs toward the end of their laying cycle. Understanding why are my eggs smaller involves looking at several factors beyond just age, including nutrition, environment, and genetics.