Very Acidic Foods and Supplements Include: EggsLiver and other organ meats Gravy Broth made from bones or other animal partsWineYogurt with active cultures Buttermilk, including buttermilk pancakes and biscuitsSour creamMost fermented foods and aged cheesesSome B vitamin supplements (or foods supplemented with B vitamins) can make your stomach more acid Hydrochloric acid supplementsDigestive enzymes