By giving egg-producing hens special feed, hens' own production of AF is stimulated. The high content of AF is specifically reflected in the egg yolk with a level about 10,000 times higher than in normal eggs. The AF enriched egg yolk is subjected to spray-drying and sealed in bags containing 4 gr each. This product is named Salovum and has been registered as a food for specific medical purposes through the regulatory authorities in the EU. However, Salovum cannot be used in patients with diagnosed or suspected with egg allergy.