Folic Acid

Question 0

Biological functions of folic acid

Answer 0

1. essential for the manufacture of genetic material DNA and RNA
2. helps B12 form red blood cells
3. essential for the development of the brain and spinal cord of the foetus, preventing neural tube defects eg. Spina bifida
4. required for protein metabolism

Question 1

Properties of folic acid

Answer 1

1. water soluble
2. stable in an acid environment
3. destroyed by exposure to light and oxygen
4. unstable at cooking temperatures

Question 2

Effects of deficiency in folic acid

Answer 2

1. Tiredness and fatigue
2. In pregnant women the foetus is at risk of NTDs
3. Lack of folic acid can cause megaloblastic anaemia (pregnant women more susceptible)

Question 3

Sources of folic acid

Answer 3

Liver
Spinach
Kidney
Cabbage
Whole grain cereals 
Fortified foods such as bread and breakfast cereals
Beetroot

Question 4

RDA: folic acid

Answer 4

Children: 100-200ug
Teens: 300ug
Adults: 300ug
Pregnant women: 500ug
Lactating women: 400ug