The best way to get the daily requirement of essential vitamins, including vitamin C, is to eat a balanced diet that contains a variety of foods from the food guide pyramid.
Vitamin C should be consumed every day because it is not fat-soluble and, therefore, cannot be stored for later use.
The Food and Nutrition Board at the Institute of Medicine recommends the following amounts of vitamin C:
Infants and Children
Adolescents
Adults
Women who are pregnant or breastfeeding and those who smoke need higher amounts. Ask your doctor what is best for you.