Why do you feel you need to cut down the risk of getting a stomach ache - do you frequently suffer from stomach aches? If so, you should visit a doctor for a check up and diagnosis; frequent stomach aches could be an indication of some serious problem, and you will need to detect the problem and treat it in order for your stomach aches to stop. Any other measures taken without knowing what the underlying cause is will probably not work, and even if they do, they will only address the symptom, allowing the real problem to get worse...