HLTB11H3 Lecture Notes - Lecture 12: Bioavailability, Heme, Hypochromic Anemia
27 Mar 2019
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Document Summary
Trace elements include iron, zinc, copper, manganese, selenium, iodine, uoride, chromium, and molybdenum. Required in amounts less than 100 mg per day trace elements have been dif cult to study as they are dif cult to remove from the diet due to environmental contamination. Content in foods may vary depending on where the food is grown or produces. Bioavailability: refers to how much of a nutrient can be absorbed and used in the body, is a concern. ; green veg, legumes, nuts, seeds, whole grains: role in metabolism. Component of many enzymes: consequence of de ciency. Promotes formation of free radicals => damages intestinal lining, shock, liver failure. Acute poisoning from a single dose can be life-threatening => one of the most common forms of poisoning in young children =>> liver transplant. Iron: delivery of oxygen to body: fe is an essential component of the heme group, heme group sits inside the proteins:
