No. The national guidelines have not been changed. It is still 6 months for healthy, full-term babies.

Yes, the allergenists are now saying that *maybe* it hasn't changed allergy rates. However, this has not been proven, nor can it be when we consider that very few babies are actually exclusively breastfed for 6 months (as recommended). In any event, ASCI (and not the health dept, WHO, ABA etc) is now recommending starting solids 4-6 months (not at 4 months, but sometime in this window).

However, allergies are only one reason why there are recommendations for the timing of solids. There are 2 other important factors: 1, does you baby need other nutrition? 2, Is your baby's gut mature enough to digest other foods? Research shows that breast milk contains everything a baby needs for at least 6 months. And we know that many baby's guts are mature at around 6 months. There is also reason to believe that if a baby is physically capable of feeding themselves, then their gut may also be mature enough.

For my money, I think following your baby's lead is the 'safe' way to go. If my baby picks up food and eats it, then I can feel assured that they are developmentally ready for it.