The Ultimate Vitamin Quiz

Vitamins are specialized molecules that serve as catalysts in chemical reactions in our bodies. For example, vitamin C fosters the chemcial conversion of hydroxylproline from proline. Hydroxylproline is an essential ingredient in the production of collagen -- the foundation of our teeth, skin and hair.

Surprisingly, strawberries contain almost twice as much vitamin C as orange juice and a little more than kiwifruit

Folic acid not only helps prevent cervical cancer and reduce osteoporosis, it's also essential in fetal growth and even acts as a mild anti-depressant.

Vitamin K, found most abundantly in leafy green vegetables, helps in blood clotting and promotes bone strength.

Vitamin D is essential in preventing rickets.

Vitamin C produces collagen, which makes up connective tissue, teeth, bones and cartilage.

Riboflavin (B2), thiamine (B1), and niacin (B3) are all B vitamins.

Vitamin D is the only vitamin we don't consume from eating or drinking -- we get it from sunlight.

While most vitamins must be replenished on a regular basis, vitamin A can be stored in the liver for up to a year.