Lecture 15

Question 1

What are the two dietary sources of iron within the diet?

Answer 1

1. Haem (animal products)

2. Non-haem sources

Question 2

Is milk a good source of iron?

Answer 2

No

Question 3

What is the most significant sign of an iron deficiency?

Answer 3

Anaemia

Question 4

What are some dietary sources of copper in the diet

Answer 4

Whole grains, legumes, pasture and liver

Question 5

What are some skin signs that are observed with a copper deficiency?

Answer 5

Hair depigmentation and a loss of wool crimp

Question 6

Describe the appearance of copper deficient wool:

Answer 6

Steely wool

Question 7

What is the best measure of copper status?

Answer 7

The liver

Question 8

What is the most common sign of copper toxicity?

Answer 8

Jaundice

Question 9

Describe the appearance of copper toxicicity in the kidneys:

Answer 9

The kidneys will appear a very dark red.

Question 10

What factors decrease the bioavailability of zinc?

Answer 10

• decreased by phytates
• absorption decreased by dietary fibre
• absorption decreased by calcium, copper, lead and manganese

Question 11

What is the main role of manganese within the diet?

Answer 11

• involved in cartilage development, blood clotting,

Question 12

What is the importance of iodine?

Answer 12

• iodine is critically important in thyroid immune function