Beans, Peas and Lentils. Beans and peas especially high in folic acid include pinto beans, lima beans, green peas, black-eyed peas and kidney beans. A small bowl of any type of lentils will give you the majority of your recommended daily amounts of folate.Here is a short list of which beans have the most folic acid.unflower seeds, flax seeds and peanuts are especially high in folate, with one cup offering up to 300 mcg. Nuts are also very high in folic acid, with both peanuts and almonds ranking especially high.