Question: are blackberries high in potassium?
Answer: Low-potassium fruit choices A tennis-ball sized apple or a small or medium-sized peach contain under 200 mg of potassium, as does a half-cup of berries (blackberries, blueberries, raspberries, strawberries). You should avoid high-potassium fruits such as mangoes, bananas, papayas, pomegranates, prunes, and raisins.