That's because they often contain added sugar—a major bloating perpetrator. “The sugar can encourage the growth of the wrong kind of bacteria,” Chutkan explains, adding that said bacteria often leads to a higher production of gas.

Can lettuce cause gas and bloating?

There are plenty of vegetables out there that do not create gas. Vegetables to Eat: Spinach, cucumbers, lettuce, sweet potatoes and zucchini are all great to eat and do not cause bloating.

Can salad cause stomach problems?

After dealing with chronic bloat and stomach problems, I decided to ditch salads. Raw, cruciferous vegetables are tough to digest because they're fibrous. If you have an unhealthy gastrointestinal tract or food sensitivities, then you're more likely to have a bad reaction to digesting raw vegetables.