Stomach Pain After Eating Salad? Here’s Why It Can Happen

It may be hard to believe that something as nutritious as salad or lettuce could cause stomach pain. However, some people find they have stomach cramps and diarrhea after eating salad, and sometimes it's pretty severe.

4 Reasons Salad Could Cause Stomach Pain

So, what might be causing your stomach pain? Some possible causes, according to Niket Sonpal, MD, an internist and gastroenterologist in New York City, include:

1. The lettuce may be contaminated.

2. You may be eating too much fiber at once.

You may be thinking it's "just a salad" and "salad is healthy," but eating a lot of salad in one sitting may be too much at once for your gastrointestinal system to handle, Dr. Sonpal says.

3. You may have constipation.

If you eat lettuce or salad and find you're gassy, it could be due to underlying constipation that is trying to make its way 'out,' Sonpal says. "Eating salads and lettuce puts a heavy fiber 'load' on the intestines, and, if you are slightly backed up, your bowels will work a bit overtime to get it all out," says Sonpal.

4. It's what else that's in that salad bowl.

The pain also could be caused by all the fixings in your salad, Sonpal says. Perhaps it's the dairy in the creamy ranch dressing and you are lactose intolerant. Or it's the croutons and you're sensitive to gluten. Or the hot peppers, spicy foods, nuts, or seeds can do you in.

Any of these ingredients can cause gas, cramps, and diarrhea in some people who are sensitive to them. If you suspect it may be another food in your salad, do some experimenting. "Slowly remove each component of the salad to narrow down what it is that is truly getting to the crux of matter," Sonpal says.

How to Avoid Stomach Pain From Salad or Other Foods

• Try supplements before you eat. You can buy a number of over-the-counter supplements, such as Alpha-galactosidase (Beano, BeanAssist), simethicone (Gas-X, Mylanta), or activated charcoal (Actidose-Aqua, CharcoCaps) that can help control gas when taken before you eat.
• Slow down. When you eat slowly and chew your food well, you're less likely to swallow air, which can cause painful gas. Also, if you watch your portions and keep them small, you're making it easier for your stomach to digest your food.
• Make sure drinks are just right. Drinks that are too hot or too cold can cause gas.
• Don't slouch. Sit up straight when you're eating and after. Slouching puts pressure on your intestines and can cause gas.
• Get moving. Regular exercise helps to keep you regular and from being constipated, which can cause gas pains.
• Try another green. If lettuce just doesn’t sit well with you, try another leafy green like spinach and see if that helps, says Sonpal.