
Introduction
Folate or vitamin B9 is a water-soluble vitamin, and it refers to 2 forms, being food folate and folic acid. [1]
Folic acid is the fully oxidised form of the vitamin that is used in fortified foods and supplements, whereas folate is the naturally occurring substance in foods. [1,2]

- Folic acid bioavailability is higher than folate and estimated to be around 85% as compared to 50% for folate. [5]
- Also, folic acid supplements taken on an empty stomach are nearly 100 percent bioavailable. [1,2]

- The total body folate content is estimated to be around 15 to 30 mg. [1,3]
- Half of the folate stores are stored in the liver and the remainder in blood and body tissues. [1]

- Folate is excreted in the urine, bile and faeces. [2]
Body Functions

Recommended Daily Intake

Deficiency Symptoms

Folate Food Sources

Excessive Intake/ Toxicity Side Effects
In people with vitamin B12 deficiency, excess folate consumption could mask the symptoms of vitamin B12 deficiency so it can’t be diagnosed. [2]
Groups At Risk of Folate Deficiency
Folate Interaction With Other Nutrients
- Vitamin B12 – Excessive folate intake may mask vitamin B12 deficiency. [1,2]
Nutrient Profiles For Food Groups
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B12 Cobalamin