Learning objectives-Vitamins Describe the structure and stability of vitamins a Describe the functions of vitamins Identify food and nonfood sources of vitamins Describe the signs and symptoms of vitamin deficiencies and toxicitiesLearning Objectives –Vitamins ◼ Describe the structure and stability of vitamins. ◼ Describe the functions of vitamins. ◼ Identify food and nonfood sources of vitamins. ◼ Describe the signs and symptoms of vitamin deficiencies and toxicities