It appears that two substancesfolate and phytochemicalsmight have some auditory advantages. Taking 800 micrograms of folate (which is also found in leafy green food) has been shown to slow the loss of high-frequency sounds. Deficiencies in folate and vitamin B12 might affect both the nervous and the vascular system associated with hearing. Hearing also benefits from phytochemicals, so the stronger the color of the fruit, the better. That means it contains high levels of these protective substances.