Ascorbic acid; Dehydroascorbic acid

The Recommended Dietary Allowance (RDA) for vitamins reflects how much of each vitamin most people should get each day. The RDA for vitamins may be used as goals for each person.

How much of each vitamin you need depends on your age and gender. Other factors, such as pregnancy and illnesses, are also important.

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.

Dietary Reference Intakes for vitamin C:

Infants

• 0 - 6 months: 40* milligrams/day (mg/day)
• 7 - 12 months: 50* mg/day

*Adequate Intake (AI)

Children

• 1 - 3 years: 15 mg/day
• 4 - 8 years: 25 mg/day
• 9 - 13 years: 45 mg/day

Adolescents

• Girls 14 - 18 years: 65 mg/day
• Boys 14 - 18 years: 75 mg/day

Adults

• Men age 19 and older: 90 mg/day
• Women age 19 year and older: 75 mg/day

Smokers or those who are around secondhand smoke at any age should increase their daily amount of vitamin C to 35 mg.

Women who are pregnant or breast-feeding and those who smoke need higher amounts of vitamin C. Ask your doctor what amount is best for you.

Images

Vitamin C source

Vitamin C deficit

Vitamin C benefit

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Vitamin C Prevention

Review Date: 02/15/2011
Reviewed By: Alison Evert, MS, RD, CDE, Nutritionist, University of Washington Medical Center Diabetes Care Center, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)