Which trace mineral is an essential component of the hormones produced by the thyroid gland?

Which trace mineral is an essential component of the hormones produced by the thyroid gland?
 a. Iodine
  b. Magnesium
  c. Selenium
  d. Zinc

Q. 2

What guidelines should consumers use to make sound decisions about nutrition claims?

Q. 3

Sarah has frequent heartburn, so she regularly takes antacids. To lessen her risk of developing a(n) _____ deficiency she could add _____ to her diet.
 a. selenium, vegetable oil
  b. zinc, nuts
  c. iodine, organ meats
  d. copper, legumes

Q. 4

How can scientific studies control for the Hawthorne effect, placebo effect, and researcher bias?

Q. 5

Synthesis of norepinephrine and collagen requires _____.
 a. selenium
  b. zinc
  c. copper
  d. iron

Q. 6

Since 2005, there have been several outbreaks of foodborne illnesses that have made people sick and resulted in the deaths of some. Why don't scientists simply conduct intervention studies rather than those that are epidemiologic when some foods are thought to be contaminated so that they can be sure which foods are at fault and remove them from the food supply promptly?

Q. 7

_____ transports copper.
 a. Hematocrit
  b. Ceruloplasmin
  c. Cytochrome c oxidase
  d. Glutathione peroxidase