Water-Soluble Vitamins

• All of the following are true in regards to fortification and enrichment, EXCEPT:

  all fortified and enriched foods are classified and regulated as dietary supplements
• The absorption of dietary iron is enhanced by the presence of:

  vitamin C
• Functions of vitamin C include all of the following, EXCEPT:

  it is a structural component of cell membranes
• When consumed in adequate amounts before conception and early in pregnancy, ___ has been shown to prevent as many as two-thirds of all cases of ___.

  folate, neural tube defects in newborns
• Absorption of vitamin B12 requires:


  binding to a protein in the stomach called intrinsic factor
• A chemical name for vitamin B6 is:


  pyridoxine
• The primary source of riboflavin (B2) in the US diet is:

  milk
• The vitamin that is sometimes given as a prescription to help lower LDL cholesterol and raise HDL cholesterol is:

  niacin (B3)
• The deficiency disease associated with the B vitamin thiamin is:

  beriberi
• Chemical compounds that bind enzymes and are required for their function are termed:

  coenzymes
• The B vitamins include all of the following, EXCEPT:

  tocopherol
• Characteristics of water-soluble vitamins include all of the following, EXCEPT:

  they are stored in muscle and liver