You鈥檙e halfway through a workout and crushing it. Then, your stomach starts churning. You keep moving, figuring the discomfort will pass鈥攂ut soon, you鈥檙e doubled over in pain, desperately scanning for the nearest bathroom.
Experiencing this type of GI distress during exercise is 鈥渕ore common than people realize,鈥 says sports dietitian Angie Asche, the founder of Eleat Sports Nutrition, a nutritional health program for athletes, and author of聽.
What Causes an Upset Stomach During a Workout?
According to聽, a Road Runners Club of America running coach, there are several reasons why your stomach or bowels may misbehave mid-workout, including dehydration and eating too much protein, fat, and fiber shortly before you break a sweat.
But Carbs Can Help Ward Off an Upset Stomach
Having a carb-rich snack before or during your workout can decrease your chances of an upset stomach while also giving your body the energy it needs to perform its best. That鈥檚 because your body digests carbs and metabolizes them into glucose鈥搕he energy source for your muscles鈥搈ore quickly than it does protein, fat, and fiber.
Quick caveat: nutrition isn鈥檛 one-size-fits-all. Scott, for instance, has worked with hundreds of runners and says that people鈥檚 fueling plans differ from one person to the next. Factors including individual food intolerances and conditions like irritable bowel syndrome, Crohn鈥檚 disease, and celiac disease can impact what sits well for you. That said, 鈥測our gut is highly adaptable, and there is evidence you can actually 鈥榯rain the gut鈥 to better tolerate food and drinks around exercise,鈥 Asche says.
So just because you can鈥檛 stomach a mid-workout snack right now doesn鈥檛 mean you can鈥檛 gradually work your way up to it.
5 Foods to Settle an Upset Stomach During Your Workout
Here are five expert-recommended foods to eat during or within 60 minutes of starting a workout. For many, these foods will provide the quick energy you need without upsetting your system.
1. Oatmeal
Oatmeal聽is a great source of carbohydrates, offering 27 grams per serving with only 4 grams of fiber. Eating it before exercise can tame rowdy bowels since the fiber in oatmeal is a soluble fiber called beta-glucan, which attracts water, forms a gel-like substance within your gut, and reduces your chances of diarrhea, explains Scott.
Just be sure to use instant or traditional oats instead of the steel-cut variety since the latter is higher in slow-to-digest fiber. Also, keep toppings simple (think: brown sugar, maple syrup, or bananas). 鈥淲hen you start adding things like seeds or nuts, you might get into that territory where it鈥檚 a little too much fat or protein,鈥 Scott says.
2. Potatoes
Boiled, peeled, and salted potatoes are great exercise fuel. Peeling makes them low in fiber (a small potato has less than 3 grams), and salting helps replenish sodium lost through sweat, Scott says.
In addition, potatoes contain resistant starch, a type of fiber that helps feed the good bacteria in your gut and can improve digestive health, Scott adds. Most athletes rely on potatoes as a pre-workout snack, but 鈥淚 have seen runners pull them out of their pockets in marathons and eat them too,鈥 Scott says.
3. Maple Syrup
Maple syrup can be a great fuel source and an alternative to聽sports gels聽during an endurance event, Scott says. It鈥檚 a carbohydrate that is mostly sucrose, which is a disaccharide, meaning that it鈥檚 made up of two monosaccharides鈥搃n this case, glucose and fructose.
Research shows that we have limited absorption sites in our intestines for monosaccharides, but multiple sources of monosaccharides are more easily absorbed, Scott says. That makes maple syrup a solid fueling choice before or during exercise. Companies like UnTapped sell it in聽.
4. Bananas
Bananas are rich in carbohydrates (about 27 grams per serving) and somewhat low in fiber (3 grams per serving), making them an easily digestible option.
鈥淲hen I have runners that seem to have more sensitive stomachs, we鈥檒l look at bananas,鈥 Scott says. Another plus: they come in their own package, making them a convenient snack to tote with you. For even easier mid-workout fueling, consider baby food pouches with bananas, suggests Scott.
5. Dates
Dates are a portable and quickly digestible snack. Just two聽Medjool dates聽have 35 grams of carbohydrates and only 3 grams of fiber, Scott says. Any type of date can be good fuel, but opting for larger-size Medjools means you don鈥檛 have to carry as many with you鈥搃deal if you鈥檙e eating on the go.
Want more of聽国产吃瓜黑料鈥檚 Health stories?聽.