There are findings suggesting that early weaning could cause allergies in babies, is this true?

This is not true because babies digestive systems are mature enough to cope with basic food after the 16th week or 4th month. There aren't enough findings to suggest that delaying weaning will prevent allergies from happening. Although health authorities are in favor food being introduced only after the 6th month, there is no reason for delayed weaning if you and your doctor feel that your baby is ready to be weaned. Watch out for signs and begin with foods that are ideal at the weaning stage.