Hun4221 certification - Study guides, Class notes & Summaries

How are heme and non-heme iron differentHeme-Fe is contained in a protoporphyrin ring -found in meat in hemoglobin, myoglobin, cytochromes -highly bioavailable Non-Heme-can be organic chelates (ferric, citrate, ferrous fumarate) -can be constituents of biological molecules (e.g iron sulfur enzymes, ferritin) -found in plants and meat -relatively poorly bioavailable ferrous iron vs ferric ironFerrous iron (Fe2+) is better absorbed than ferric iron (Fe3+) Vitamin C enhances absorption by...

How are heme and non-heme iron differentHeme-Fe is contained in a protoporphyrin ring -found in meat in hemoglobin, myoglobin, cytochromes -highly bioavailable Non-Heme-can be organic chelates (ferric, citrate, ferrous fumarate) -can be constituents of biological molecules (e.g iron sulfur enzymes, ferritin) -found in plants and meat -relatively poorly bioavailable ferrous iron vs ferric ironFerrous iron (Fe2+) is better absorbed than ferric iron (Fe3+) Vitamin C enhances absorption by...