Hematogen (, gematogen; ; , aimatogóno) is a nutrition bar which is notable in that one of its main ingredients is black food albumin, a technical term for cow's blood. Other ingredients may vary, but they usually contain sugar, condensed milk and vanillin. It is often considered to be a medicinal product, and is used to treat or prevent low blood levels of iron and vitamin B12 (e.g., for anemia or during pregnancy). See also Sanguinaccio dolce, a sweet pudding made with pig’s blood Protein bar Blood as food References Dietary supplements Blood as food Soviet cuisine Health in the Soviet Union