Psyllium and wheat dextrin are fiber supplements used to treat occasional diarrhea and increase your daily fiber intake. While both supplements may increase fiber, the two supplements have distinct differences. Before using a fiber supplement, talk with your doctor about the risks and safety involved. Some fiber supplements may cause drug interactions or trigger an allergic reaction in some people. Fiber supplements are intended for short-term use.
Psyllium
Psyllium is fiber that is made from the husk of seeds that come from a herb bush, called Plantago ovata, according to the University of Maryland Medical Center. Psyllium husk is sold in power and pill form. The powder is added to water or juice and has a nutty flavor that thickens the beverage. Psyllium is primarily soluble fiber, meaning it absorbs water during digestion, adding bulk and softening stools at the same time. A distinct characteristic of psyllium fiber is that can help lower cholesterol when used on a consistent basis. The common dose of psyllium husk fiber is ½ to 2 tbsp. of psyllium fiber daily added to a warm cup of water or juice.
Wheat Dextrin
The main difference between psyllium fiber and wheat dextrin is that wheat dextrin is tasteless, odorless and will not thicken beverages. It can be added to foods, sauces, baked goods and beverages without any flavor or texture changes, according to Drugs.com. Wheat dextrin is made from wheat but is gluten-free and suitable for use by people with celiac disease or a wheat allergy. Unlike psyllium fiber, wheat dextrin has an excellent safety profile, according to Drugs.com. Psyllium fiber may cause an allergic reaction in some people.
Fiber Precautions
Both types of fiber can cause unwanted side effects with initial dosing. When you suddenly increase the amount of fiber you ingest daily, you can develop bloating, intestinal gas, abdominal cramps and gas pains, according to MedlinePlus. As the bacteria in your digestive system become accustomed to the increased amount of fiber, these symptoms should subside. Too much dietary fiber can interfere with properly absorbing zinc, iron, calcium and magnesium. Follow the directions on the label carefully and do not use any more than the recommended dose, unless directed by your doctor.
Psyllium Warning
Psyllium can cause choking or constipation if not ingested with enough water, according to the University of Maryland Medical Center. Because psyllium forms a gel-like substance after ingestion, an insufficient amount of water can cause the supplement to get stuck in your throat or dehydrate your stool, making elimination difficult.
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