NBA Most Valuable Player candidate Stephen Curry (center) shined during the 2008 NCAA Men's Basketball Tournament. Here he celebrates a second-round win over Georgetown with his Davidson College teammates after a 25-point second-half performance.
(7) The Institute recommends against getting more than 1,000 micrograms per day of folic acid from supplements or fortified food; folate intake from food is not a concern. One main reason for the upper limit on folic acid is that getting too much folic acid can mask the signs of a vitamin B12 deficiency.
Food Sources. Primary folate sources include yeast, liver, fresh green vegetables, and fresh fruits such as oranges. Folate is a heat-labile substance that is easily destroyed by cooking, especially in water. Up to 50-90% of folate may be destroyed by cooking. Figure %: Folic Acid Content of Selected Foods.