Folic acid (also known as Vitamin M and Folacin) and Folate (the anionic form) are forms of the water-soluble Vitamin B9. These occur naturally in food and can also be taken as supplements. Folate gets its name from the Latin word folium ("leaf").
Folate in foods and other sources
Leafy vegetables such as spinach, turnip greens, lettuces, dried beans and peas, fortified cereal products, sunflower seeds and certain other fruits and vegetables are rich sources of folate. Liver and liver products also contain high amounts of folate, as does bakers yeast. Some breakfast cereals (ready-to-eat and others) are fortified with 25% to 100% of the recommended dietary allowance (RDA) for folic acid. Folate is also found in Vegemite or Marmite, with an average serving (5g) containing 100μg or 2000μg per 100g. Folate is also synthesized in bacteria.