Abdomen pain is a common sign of your body suffering from a deficiency of minerals. Lack of potassium or other vital minerals can lead to persistent abdominal pain. Ideally, you should eat more potassium rich foods and moderate your intake of sodium. Potatoes, nuts, seeds, pulses, milk and yoghurt, fish etc are rich in potassium. In case you are experiencing a severe pain, seek help from a healthcare professional.