Onions

Onions are subterranean bulbous vegetables with a distinct and powerful flavor. They are rarely eaten whole but are popular as side dishes, salads, and prepared dinners. Even though they are often consumed in tiny amounts, onions are one of the primary dietary sources of fructans. These fibers are soluble and can induce bloating.

Furthermore, some people are sensitive or intolerant to additional chemicals found in onions, particularly raw onions. As a result, onions are a well-known cause of bloating and other digestive problems. These digestive effects may be reduced if the onions are cooked.