1/24/2013

Blockages in the gastrointestinal tract, often the source of urban legends about digestion, are uncommon in healthy individuals, dietitian Tamara Duker Freuman writes. She notes that an accumulation of undigested material that causes a GI blockage is called a "bezoar," and it can come from delayed emptying of the stomach, scar tissue from a past surgery or medical conditions such as Crohn's disease.

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