Functions of Vitamin C

• Main function of vitamin C is it acts as antioxidants, which protects the body from free radicals.

• Vitamin C is responsible for collagen production. Collagen is present in the muscles and bones. It is responsible for holding the cells intact.

• Vitamin C helps to boost the immune system. It helps to heal abrasions and bruises.

• Vitamin C also keeps the gums and gingiva in healthy state. People Vitamin C deficiency often develop black, swollen gums known as scurvy. 

Dietary sources of Vitamin C

 Plant sources - Goose berry, guava, broccoli, papaya, orange, lemon, spinach, cabbage.

Animal sources- Beef liver, oysters, cod roe. 

Dietary requirements 

 Vitamin C deficiency

• Formation of liver spots on the skin

• Spongy and bleeding gums,

• Swollen gums

•  Bleeding from mucous membranes

• Patients look pale and tired

• Feels depressed and less active

• Partially immobilized

• In advanced deficiency the wound healing is delayed, loss of teeth, and eventually death. 

Therapeutic uses

• Prevention and treatment of scurvy

• Treatment of malnutrition

• Functions as antioxidants

• High doses of vitamin C helps in lead induced nerve and muscle injuries

• Reduces the neurological deficit in stoke  

Adverse effects

Common adverse effects

• Indigestion particularly when taken in empty stomach

• Large doses or mega doses will cause diarrhea

• Toxicity manifests as nausea, vomiting, diarrhea, flushing of the face, headache, fatigue and disturbed sleep

• Main toxic reaction in children is rashes 

Possible side effects

• Vitamin C enhances iron absorption and results in iron overload- Hemochromatosis

• Can cause hemolytic anemia in G6PD deficiency

• High intake of ascorbic acid can lead to Kidney stone formation