Last time we ended by explaining that breastfed infants have less food allergies and sensitivities. Those that have done testing previously may remember the IgA marker on the urine test. IgA is the first line of defense in the GI mucosa and when reduced may have greater food allergies and eczema. IgA is a crucial antimicrobial component also found in breast milk and those that show less tend to have “leaky gut” which leads to food allergies in many cases.