The information here should only be a guideline. Your doctor may provide you with other advise and your baby may have ideas of her own.For the first four to six months of your baby's first year all she will need is breast milk or formula. During this time she should start to be introduced to solids when she is ready.
The small intestine is the 'work horse' of digestion, as this is where most nutrients are absorbed. Peristalsis is also at work in this organ, moving food through and mixing it up with the digestive secretions from the pancreas and liver, including bile.ood is pushed through the esophagus and into the stomach by means of a series of contractions called peristalsis. Just before the opening to the stomach is an important ring-shaped muscle called the lower esophageal sphincter (LES).
Doctors estimate that it takes one to four days for food to go all the way through a person's system. The average time of the trip is about 24 hours. The food must travel through the esophagus, the stomach, 20 feet of small intestine and 6 feet of large intestine before exiting the body as waste.