Folic acid is the man-made form of the B vitamin folate, sometimes referred to as vitamin B9 or folacin.
Folate is found in small amounts in lots of foods including broccoli, brussels sprouts, leafy green vegetables, peas, chickpeas, kidney beans and fortified breakfast cereals.
If you’re pregnant or trying to conceive, you should take a 400 microgram folic acid supplement every day until you’re 12 weeks pregnant.