Folate and folic acid are both forms of vitamin B9, but they work differently in your body. Learn which to choose based on your health needs and genetics.
Frequently Asked Questions
Is folate the same as folic acid?
No. Folate is the natural form of vitamin B9 found in foods. Folic acid is a synthetic, oxidized form used in supplements and food fortification. Both must ultimately be converted to 5-methyltetrahydrofolate (5-MTHF) — the active form the body uses — but their conversion pathways differ significantly.
Which is better, folate or folic acid?
For most people, either form works well at recommended doses (400 mcg daily). However, people with MTHFR gene variants may convert folic acid less efficiently and benefit from methylfolate (5-MTHF) supplements instead. Food sources of natural folate are always a good foundation.
Should I take folate or folic acid during pregnancy?
Folic acid at 400 mcg daily is the standard recommendation, starting at least one month before conception. It has the strongest clinical evidence for preventing neural tube defects. Women with MTHFR variants or previous NTD pregnancies should discuss methylfolate and higher-dose options with their healthcare provider.
What is MTHFR and why does it matter for folic acid?
MTHFR is an enzyme that converts folate into its active form, 5-MTHF. About 40% of people carry genetic variants (C677T or A1298C) that reduce this enzyme's efficiency. People with two copies of C677T have only around 30% of normal enzyme activity, making the conversion of folic acid slower. 5-MTHF supplements bypass this step entirely.
What foods are highest in natural folate?
The richest food sources of natural folate include cooked lentils (358 mcg DFE per cup), cooked spinach (263 mcg), cooked chickpeas (282 mcg), beef liver (215 mcg per 3 oz), asparagus, broccoli, avocado, and beets. Fortified breakfast cereals and enriched grains also provide folic acid.