Trace Minerals Part 2

Question 1

What is the genetic version of iron toxicity?

Answer 1

hemochromatosis

Question 2

What is hemochromatosis?

Answer 2

toxic build up of iron due to genetic inability to properly metabolize it

Question 3

Who is at risk for iron toxicity (non genetic)?

Answer 3

supplemental iron overdose in kids

Question 4

What is the symptom for iron toxicity?

Answer 4

organ damage from iron deposistion

Question 5

What is the cause of iron deficiency in athletes?

Answer 5

inadequate intake, inadequate heme intake, hemolysis due to pounding the pavement, ruptured muscles, etc

Question 6

Who is at risk for iron deficiency?

Answer 6

kids, adolescents, females of childbearing age, pregnant woment

Question 7

What are the symptoms of iron deficiency?

Answer 7

pallor, fatigue, decreased cognition, short attention span, depressed immune system

Question 8

Can iron deficiency be found in people without anemia?

Answer 8

yes

Question 9

How are good sources of iron?

Answer 9

seafood, lean meat, poultry, legumes, vegetables, black strap molasses, dried fruit, whole grain/enriched breads

Question 10

What is the function of iron for heme proteins?

Answer 10

transport oxygen in lungs to tissues

Question 11

What is the function of iron for nonheme proteins?

Answer 11

transports and stores oxygen in muscle

Question 12

How do we excrete iron?

Answer 12

GI tract (sloughed), blood loss, bile

Question 13

When iron stores are low, what enzyme is most prevalent?

Answer 13

transferrin

Question 14

When iron stores are high, what enzymes is most prevalent?

Answer 14

ferritin

Question 15

Where is iron stored?

Answer 15

liver

Question 16

Why must iron be bound to a protein?

Answer 16

because iron is extremely reactive

Question 17

What increases iron absorption?

Answer 17

fructose and sorbitol, acids, meat, poultry, meat, poultry, fish

Question 18

What decreases iron absorption?

Answer 18

polyphenols, phytate, oxalate, phosvitin, calcium, zinc, manganese, nitrogen

Question 19

Where do you get heme iron?

Answer 19

animal products, hemoglobin, absorbed using heme carrier protein 1

Question 20

Where do you get nonheme iron?

Answer 20

plants and supplements, reduced in SI (need vit. C), absorbed using generic divalent mineral transporter