Problem
A. Explain how bioavailability affects the functionality of vitamins within the body. Discuss how food preparation methods affect vitamin bioavailability.
B. Even though vitamins are not considered to be energy-yielding nutrients they play a required role in metabolism. How do they accomplish this task? Identify the significant roles of B complex vitamins in metabolism.
C. Describe a unique source of niacin and a unique function of niacin in the body.