Changing your diet will play an important part in controlling your symptoms of IBS. However, there is no one size fits all diet for people with the condition. The diet that works best for you will depend on your symptoms and how you react to different foods.educing your stress levels may also reduce the frequency and severity of your IBS symptoms. Some ways to help relieve stress include: 1  relaxation techniques – such as meditation or breathing exercises. 2  physical activities – such as yoga, pilates or tai chi.