RDA & DRIFolacin What foods naturally contain folic acid? By Joanne Larsen 0 790 Facebook Twitter Google+ Pinterest WhatsApp What foods naturally contain folic acid? Folic acid also called folacin is richly (>10% per 1 cup serving) found in spinach, asparagus, turnip greens, lima beans, beef liver, parsley, broccoli, and romaine lettuce.