VITAMIN C L-ascorbic acid, ascorbate Synthesized from glucose by most animals Vitamin C is an electron donor

FUNCTIONS OF VITAMIN CEnhances absorption of iron reduces iron to more absorbable

ferrous form chelates with ferrous ion to make it

more soluble

FUNCTIONS OF VITAMIN C Involved in the biosynthesis of the

protein, collagen, found in connective tissues such as cartilage, ligaments, and tendons

FUNCTIONS OF VITAMIN CBiosynthesis of the catecholamine norepinephrine (neurotransmitter)

Bile acid synthesis

OTHER FUNCTIONS

Promotes the healing of cuts, abrasions and

wounds Helps fight infections. Inhibits conversion of irritants in tobacco smoke and certain foods into cancer-causing substances. Appears to dilate blood vessels and thereby lessen the risk of developing high blood pressure and heart disease. Helps regulate cholesterol levels.

FOOD SOURCES OF VITAMIN C

Citrus fruits Potatoes Green peppers Cauliflower Broccoli Strawberries Romaine lettuce Spinach

Easily lost through cooking

Sensitive to heat Sensitive air

DAILY REQUIREMENTS

Recommended Dietary Allowance

mg per day

adult male 90

adult female 75

Children 4-13 years 25

Tolerable Upper Intake Level(adult male)

2,000 mg per day

Tolerable Upper Intake Level(adult female)

2,000 mg per day

DEFICIENCY OF VITAMIN C When there is a shortage of Vitamin C,

various problems can arise like : Scurvy disease ;a disease characterized

by weakness, fatigue, anemia, swollen joints, bleeding gums and loose teeth and skin discoloration due to "pinpoint" hemorrhages under the skin and a tendency to bruise easily

poor wound healing Edema (water retention) weakness, a lack of energy poor digestion painful joints bronchial infection and colds .

DEFICIENCY OF VITAMIN C

TOXICITY

Diarrhea nausea skin irritation burning upon urination depletion of the mineral copper. development of kidney stones due to

oxalate formation or hemochromatosis or other diseases related to excessive iron accumulation.

Thank you!