Your baby is not physically developed enough to eat solid food from a spoon. Feeding your baby solid food too early may lead to overfeeding and being overweight. As a general rule, solid foods do not help babies sleep through the night. Give the new food for five to seven days before adding another new food. This way you can tell what foods your baby may be allergic to or cannot tolerate.
Egg whites are more likely than yolks to cause an allergic reaction.
Most physicians recommend that you wait until after one year to introduce whole eggs. Begin with small amounts of new solid foods a teaspoon at first and slowly increase to a tablespoon. The first solid foods are dry infant cereals, mixed as directed. Once your baby adjusts to these, you can add vegetables. Then add fruits, then add meats.