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The Effects of Celery on Your Digestive System

author image Sandi Busch
Sandi Busch received a Bachelor of Arts in psychology, then pursued training in nursing and nutrition. She taught families to plan and prepare special diets, worked as a therapeutic support specialist, and now writes about her favorite topics – nutrition, food, families and parenting – for hospitals and trade magazines.
The Effects of Celery on Your Digestive System
A small bowl of celery. Photo Credit: Dar1930/iStock/Getty Images

The natural fiber and phytochemicals in celery make important contributions to the health of your digestive system. One stalk of celery supplies 4 percent of the daily value for fiber, based on eating 2,000 calories daily. Because it has equal amounts of soluble and insoluble fiber, you gain the full range of benefits, from preventing constipation to facilitating nutrient digestion and absorption. Celery also contains plant-based chemicals that may lower your risk for stomach inflammation and ulcers.

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Nutrient Digestion and Absorption

The muscles in the wall of your small intestine contract to create two different types of movement. One type, called peristalsis, is the same as the muscle activity in the large intestine. During peristalsis, muscles contract in waves, which propel food and wastes forward through the intestine. In the small intestine, muscles also quickly and randomly contract in segments of the intestine, which churns and mixes foods. This action helps enzymes break down nutrients and ensures they come into contact with the parts of the small intestine that absorb nutrients into the bloodstream.

Benefits From Fermentation

Bacteria in the large intestine ferment some of the soluble fiber in celery. Fermentation produces a small amount of energy and short-chain fatty acids. One of these fatty acids -- butyrate -- contributes to the overall health of your gastrointestinal tract. It helps fight inflammation in the lining of the large intestine and keeps the gastrointestinal barrier healthy, reports a review in March 2011 issue of the “World Journal of Gastroenterology.” An intact gastrointestinal barrier is vital because it’s responsible for allowing nutrients to pass into your system while keeping bacteria and pathogens out.

Prevent Ulcers and Gastritis

A study using laboratory rats found that celery extract protected the lining of the stomach and reduced the incidence of ulcers, according to a report in the July 2010 issue of “Pharmaceutical Biology. The results may be due to the antioxidant effect of chemicals found in the celery extract, such as flavonoids and tannins, but a definitive conclusion was not reported. More research is needed to determine its effectiveness in people. Information from the University of Maryland Medical Center notes that flavonoids in celery may prevent the growth of bacteria, which are responsible for gastritis, or inflammation in the stomach lining. It's not clear whether just eating celery has the same effect, however

Maintain Regularity

Insoluble fiber resists digestion, so it stays intact as it travels through your system. Along the way, it absorbs water, which ensures that stool maintains the proper consistency. In this role, it prevents constipation by keeping stool soft, but it can also boost consistency to help relieve diarrhea. The size and weight of stool increases due to insoluble fiber. This bulk is important because it pushes against receptors that stimulate muscles in the walls of the intestines, then they contract to push waste through the length of the intestines.

Potential Downside and Tips

For all the benefits you’ll gain from fiber, it’s also good to remember that too much fiber can cause gas, bloating and diarrhea. You can avoid unwanted side effects by adding fiber to your diet gradually until you reach the recommended daily intake of 25 to 35 grams. Fiber absorbs water, so as you increase fiber, be sure to drink plenty of water.

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