Folic acid or folate is vitamin B9. The daily recommended intake is:
0 – 6 months -----------30 microg
6 – 12 months ---------50 microg
1 – 18 years ------------100 – 400 microg
18 years + ---------------400 microg
Pregnant -----------------1000 microg
Lactating -----------------1000 microg
Deficiency symptoms and risk factors include:
• Abnormal faetal development, eg. Neural tube defect
• Vascular degeneration
• High homocynteine levels
• Low energy
• Confusion
• Forgetfulness
• Irritability
• Depression
• High blood pressure
• Insomnia (sleep disorders)
• Risk to develop some cancers
• Cervical dysplasia
The overdose side effects include:
• Nausea
• Bloating
• Zinc and potassium deficiency
• Loss of appetite
• May mask anaemia from vitamin B12
• Kidney damage
• Worsens some forms of childhood leukemia
• Increased risk to develop some cancers from vitamin B complex supplements
• Reduces or interferes with the effectiveness of methotrexate (an anticancer drug used in chemotherapy), anticonvulsant drugs, barbiturates, estrogen and sulfasalazine
Folate is the natural form of vitamin B9 and folic acid is the synthetic form. Anything in excess is dangerous for our health and a doctor can give you always the right advice.

