Food moves through the gastrointestinal tract as a result of a series of coordinated muscle contractions. Muscles that contract either too fast or too slow cause the irritable bowel of irritable bowel syndrome, sometimes abbreviated as IBS. The symptoms of IBS include pain in the abdomen, changes in normal bowel movements, constipation and diarrhea. While supplements cannot cure an irritable bowel, clinical research studies have shown that some supplements reduce symptoms.
Flaxseed
Flaxseeds are small seeds that pack a nutritional punch. They are rich in protein, fiber, vitamins, minerals and heart healthy omega-3 fatty acids. One study found that flaxseed is effective in reducing the bloating, abdominal pain, and constipation associated with irritable bowel, according the University of Maryland Medical Center. Take 6 to 24g of this supplement per day.
Peppermint Oil
This oil is extracted from the peppermint plant, the scientific name of which is Mentha piperita. Peppermint oil has been traditionally used for a variety of digestive problems, some of which are associated with an irritable bowel. According to the University of Maryland Medical Center, some research studies have shown that this oil can help reduce abdominal cramps and gas associated with IBS. However, not all research studies have shown positive significant results.
Psyllium
Oregon State University says that many research studies have shown that psyllium can help relieve symptoms of an irritable bowel. Psyllium is a type of soluble fiber that can lower total cholesterol and LDL cholesterol, which is sometimes referred to as "bad" cholesterol because of its unhealthy effects. This supplement is derived from the seed husk of a plant called Plantago ovata. Additionally, a comparison between wheat bran, oat bran and psyllium supplementation showed that only psyllium significantly reduced IBS symptoms.
Melatonin
The University of Maryland Medical Center says that melatonin may be effective in treating an irritable bowel. The center recommends taking 2 to 5mg of this supplement before bedtime, although the evidence supporting the role of melatonin in IBS is based on only a few small studies. A doctor or pharmacist can identify any possible interactions that melatonin may have with other drugs. However, Medline Plus, an online medical encyclopedia associated with the U.S. National Library of Medicine, says that there is insufficient evidence to support the role of melatonin in reducing irritable bowel symptoms.
