PBS
Pbs Nova Teachers: Dying to Be Thin: Body Needs
Find out what the human body needs to function at its best, and why.
Mayo Clinic
Mayo Clinic: Vitamin and Mineral Supplements
This site from the MayoClinic.com contains an article entitled, "Using vitamin and mineral supplements wisely". Focuses on the right balance of minerals and vitamins, but shows the benefits of whole foods as well.
Precision Nutrition
Encyclopedia of Food: Vitamin B2 Riboflavin
Identify the health benefits and sources for maintaining a good level of vitamin B2 in the human diet.
US National Library of Medicine
Medline Plus: Riboflavin
Organized into several sections, including "Illustrations," "Functions," and "Food Sources," this encyclopedia article is a simple overview of B2, or riboflavin. Click on the thumbnails in the "Illustration," section to pull up...
Other
Vitamin Information Center Vitamin B 2
This site provides very brief information on vitamin B2 which is also known as riboflavin.