Thursday, September 29, 2011

Recommended Daily Dietary Intake (RDI) for Vitamins

Vitamins are substances that are necessary in small amounts to sustain life. Vitamins need to be regularly supplied via the food you intake, as most are not stored in the body. They play a role in metabolism, enabling the body to use other essential nutrients such as carbohydrates, fats, proteins and minerals.  Vitamins are involved in growth; the ability to produce healthy offspring and the maintenance of health.  Vitamins may even slow, or reverse many diseases such as cancer, heart disease, osteoporosis and impaired immunity. 

   
Vitamin
RDI
Good sources
Why you need it
Vitamin A
700 - 900μg
1 mango = 828μg
1 cup broccoli = 60μg
Eyesight
Healthy skin
Thiamin B1
0.9 – 1.1mg
1 cup spinach = 0.02mg
1 cup peas = 0.32mg
Growth and development, heart, nervous, digestive function
Riboflavin B2
1.1 – 1.5mg
1 cup spinach = 0.06mg
1 cup broccoli = 0.2mg
1 mushroom = 0.05mg
1 egg = 0.2mg
Energy & red blood cell production, healthy skin, hair, nails
Niacin B3
14 - 16mg
1 cup spinach = 0.14mg
1 potato = 1.7mg
Energy production, DNA repair
Vitamin B6

1.3– 1.7mg
100g banana = 0.36mg
100g spinach = 0.195mg
Wide variety of functions such as protein and red blood cell metabolism, nervous and immune system function
Vitamin B12
2.4μg
Lean beef = 1.7μg
Eggs = 0.65μg
Milk = 0.3μg
Forms red blood cells, builds genetic material, aids function of nervous system, energy    production
Folate
400μg
1 cup tomato juice = 26μg
1 potato = 36μg
1 cup baked beans = 90 μg
Helps produce and maintain new cells, esp. important during infancy and pregnancy. Helps to create and prevent changes to DNA
Vitamin C
75-90mg
1 cup peas = 17.5mg
1 cup broccoli = 102mg
1 kiwifruit = 57mg
Protects body from infection, aids healing
Vitamin D

5.0–15.0μg
Sunlight = 6-15minutes

Helps absorb calcium, strengthens bones
Vitamin E
15mg
30g sunflower seeds = 7.4mg
100g avocado = 2.92mg
Maintains body tissues, protects lungs,      formation of red blood cells
Vitamin K
80μg (minimum)
1 cup spinach = 120μg
1 cup broccoli = 420μg
Essential for the normal clotting of blood

RDI units: mg = milligrams
      μg = micrograms

Sources for fact sheet: 
· http://www.nhmrc.gov.au/_files_nhmrc/publications/attachments/n35.pdf?q=publications/synopses/_files/n35.pdf
· FoodWorks nutrition information program, http://dietary-supplements.info.nih.gov

For More Information

Wesley Corporate Health
Level 2 / 46 Edward Street
Brisbane  Qld  4000
Phone:  07 3234 2600
Email: info@weshealth.com.au


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