• Lactose
  • The reason I ask is that oversupply and lactose overload from oversupply can cause all those symptoms, and it's probably more common than allergy, and oversupply likeliest to happen when the baby is very young, because milk supply peaks during early infancy. (llli.org)
  • When you have a dairy allergy concern, the thing you should be worried about is dairy protein, not lactose. (llli.org)