I have been trying to find some information online and have found nothing so far. We found out my husband has an intolerance to duck eggs. We also have some muscovy, which I understand are more geese than ducks. Does anyone know if you have an intolerance for duck eggs will you also be intolerant to geese or muscovy eggs too? Everything that I have read is an intolerance for one specie does not mean an intolerance for another. I was wondering if anyone had any experience with this.