Repair mucosal lining by supporting healthy intestinal mucosal cells, goblet cells and overall immune function with extra essential fatty acids, zinc,
vitamin C and natural
vitamin A and
D from cod liver oil.
Additionally, consider checking for adrenal stress. There are saliva tests available that check levels throughout the day. Adrenal stress can contribute to GI stress and low IgA levels.
Lastly, exercise and relaxtion techniques can help increase IgA levels.
Good luck.