1. If solids are started before a baby's system is ready to handle them, they are poorly digested and may cause problems (ones you can see now, or later)
2.From birth until somewhere between four and six months of age, babies possess what is often referred to as an "open gut." This means that the spaces between the cells of the small intestines will readily allow intact macromolecules, including whole proteins and pathogens, to pass directly into the bloodstream. You want to wait for the gut to "close", when it is open they are much more likely to develop allergies.
3. The early introduction of solids is associated with increased body fat and weight in childhood.
You can do research and find lots of benefits to waiting until at least 6 months, I have yet to find ANY benefits to starting early (all the studies show it doesn't make them sleep longer), so why not just wait?
at 5:58 PM on May. 3, 2010