The invention relates to the use of compatible solutes, especially ectoine, hydroxyectoine, di-myo-inositol phosphate (DIP), cyclic 2,3 diphosphoglycerate (cDPG), 1,1-di-glycerol phosphate (DGP), β-mannosylglycerate (firoin), β-mannosylglyceramide (firoin A), proline betaine and/or derivatives as well as combinations thereof for the production of an agent aimed at preventing and treating gastrointestinal and amyloidal diseases, with agents containing said active ingredients being disclosed as well.
