As reported in the book Food ​ — Your Miracle Medicine, Dr. Irwin Ziment, lung specialist at the University of California at Los Angeles, explains how it works: “Chicken, like most protein foods, contains a natural amino acid called cysteine, which is released when you make the soup.
Los Angeleses asuva California ülikooli kopsuspetsialist dr Irwin Ziment selgitab raamatus „Food – Your Miracle Medicine ”, millist mõju kanasupp organismile avaldab:„ Nii nagu enamik valgurikkaid toiduaineid, sisaldab kanaliha looduslikku aminohapet tsüsteiini, mis vabaneb supi keetmisel.