VITAMINS
  WHAT ARE VITAMINS?
  Vitamins are organic substances which are necessary food factors required in small amounts to regulate energy transformation and metabolism. Vitamins are not energy sources but they protect from diseases and work as food catalysts too. Vitamins are effective in very small amounts (mg or mg). Every vitamin has a specific function and deficiency of a vitamin in diet causes a specific disease. Vitamins are not formed in the body except vitamin D. Therefore, they must be taken from their sources.
There are two types of vitamins:
1. water soluble vitamins (C, B)
2. fat soluble vitamins (A, D, E, K)
 
VITAMIN A
     VITAMIN B - VITAMIN C - VITAMIN D - VITAMIN E - VITAMIN K
The main function of vitamin A is to form VISUAL PIGMENT. It is essential for normal growth, healthy teeth, saves us from infectious diseases, night vision, normal bone and teeth development. It transports nutrients across the cell membrane. Vitamin A is an antioxidant. It increases iron metabolism.
 
FOOD SOURCES
 
  Milk, egg yolk , liver fats, cod liver oil, carrot, apricots,Peach, butter, green leafy vegetables, cheese
 
DEFICIENCY
 
  Deficiency of vitamin A causes:
Night blindness
Xerophthalmia
Respiratory infection
Allergies
Loss of teeth enamel
Gum disease
Decrease in immunity
DOSE
 
Male : 1.00 mg per day
Female : 0.8 mg per day
 
OVERDOSE
 
  Overdose of Vitamin A may cause:
Headache
Fatigue
Skin problems
Bone pain
Dry skin
Thickening of bone
Brittle nails
Constipation
long term use can cause hair loss
liver damage
increase in blood fats/cholesterol.
 
REMEMBER
 
  Vitamin A is sensitive to light & it is destroyed by light or high temperature or cooking in copper/iron utensils.
   
   
   
   
 
 Contact us:
info@citycollegiate.com
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