Stomach problems are a common complaint among runners. It only makes sense since our intestines are jumping up and down for a long period of time, sometimes for hours. Unfortunately a more serious intestinal issue affects a smaller percentage of runners and can interfere with daily training and racing. Irritable Bowl Syndrome, or IBS, is poorly understood and does not have a specific diet or medication that can cure it. This can be extremely frustrating for runners since the symptoms can get in the way of performance. The best thing one can do is to learn how to control the symptoms, but this is highly individualized.
Causes & Symptoms
The actual cause of IBS is unknown and experiences can vary from person to person. It is important for runners, and anyone else living with this condition, to understand what triggers their own symptoms and alter their lifestyle based on those factors. IBS can cause stomach and bowel sensitivity, gas, bloating, cramping, constipation, and difficulty controlling bowel movements. It is shown that different foods and psychological disturbances such as anxiety or a stressful event can cause these symptoms to heighten.
Does Running Make Things Worse?
Unfortunately yes, it does, but not in every case. If what is causing your symptoms is stress, then running can actually make it better. Studies show that exercise is a key method to relieving stress. If your IBS causes constipation rather than diarrhea, then running can also help by relaxing the intestines and promoting more regular bowel movements. For those suffering from the opposite symptoms, running will usually make it worse and cause you to have to stop mid-run for a toilet break. During exercise, especially at a higher intensity, such as running, the blood is circulated to the muscles and away from the intestines. This lack of oxygen in the area is the cause of cramping.
Controlling Symptoms
As mentioned above, runners should first figure out what triggers their symptoms if they want to be able to run without worry. A proper diet has been shown to be a critical method for controlling symptoms, but requires a great deal of trial and error. Some foods that have been shown to exacerbate symptoms are refined and processed foods (since they require more work for the body to break down), high fiber foods, dairy products, and beverages with caffeine (I know, coffee is a must for so many of us morning runners!).
It is best to not go into a complete diet overhaul and eliminate everything. You may only have one food group that your IBS is sensitive to so avoiding everything is unnecessary. The number one place to start is by eliminating one food at a time and tracking your intake and body responses with a food diary. Cutting out dairy as a first option has been shown to have positive results in controlling symptoms. This food group is not digested very well in general in any body, so when combined with lactic acid buildup during exercise, it can disrupt the stomach for most people anyway, so it’s an even worse situation for those who suffer from IBS.
Tips for Easing Symptoms
· Never introduce a new food/food group right before a race! Practice keeping a steady diet for at least 1-2 weeks before the event.
· Stick with natural mid-run fuel. Gels and sports drinks can be highly concentrated and if you do not have enough water after taking them, it can cause bloating and cramping soon after.
· Dehydration causes nausea in general so staying hydrated before, during, and after runs is important. The best approach is to practice being hydrated ALL THE TIME.
· Avoid foods high in protein and fat before running. Actually, it is best to give at least 2 hours for a meal/snack to digest before heading out.
· Research shows that symptoms are not only worse just after a meal, but in the morning hours as well. Opting to run later in the day may be ideal, but most races are scheduled in the early AM, so morning runs are beneficial to train the body for race day.
Once you have an idea of what your triggers are, training will be much more comfortable. For those of you who race, be careful with the “carb-loading” leading up to the event. Instead of taking in a large amount of carbs the couple of days leading to a race, it is best to start the loading about a week before and spread the quantity over the day. It may take much more time out of your schedule and weeks or even months to really figure out what is causing your symptoms, but in order to train comfortably with IBS and avoid taking medications, which are usually antidepressants, this trial and error process is worth it.