Folic acid (also known as folate or vitamin B9) plays an important role in the functioning and development of your blood cells. In pregnancy, folate content is important for the development of the fetus, particularly in the first 12 weeks of pregnancy. Folate deficiency is rare in Canada with a prevalence of less than 1% of the Canadian population.
What foods contain folate?
Vegetables: Beets, Avocados, Brussel Sprouts, Broccoli, Dark leafy greens
Beans
Citrus fruits, Papaya, Bananas
Whole grains
Seafood
Eggs
Legumes
Nuts and seeds
What are the symptoms of folate deficiency?
Symptoms of folate deficiency are similar to those of B12 deficiency. Though rare, neuropsychiatric manifestations include:
Numbness
Insomnia
Cognitive slowing
Restless leg syndrome
Weakness
Balance and co-ordination trouble
Difficulties with memory
Depression and irritability
What causes folate deficiency?
Alcoholism
Medications including valproic acid, carbamazepine, cholestyramine, sulfasalazine, methotrexate
How do I test for folate deficiency?
Canadian labs offer serum and RBC folate (the amount of folate contained within red blood cells). RBC folate is a better test of folate status than serum folate, as it does not fluctuate with recent folate consumption associated with a meal or supplement.
Should I order folate testing?
Given the rarity of folate deficiency, folate testing is not routinely recommended as part of nutritional status as most Canadians have sufficient stores. As such, the province of Ontario does not cover this test as an insured test.
