The most common side effect of Benefibre is mild flatulence, according to the company website. Other possible side effects include nausea, diarrhea, stomach pressure and gastrointestinal pain or discomfort. If side effects persist, individuals should decrease the amount and add it gradually to their diet over time.
Benefibre contains wheat dextrin and 100-percent natural fiber, and is available in flavor-free or orange flavor, according to Drugs.com. Benefibre Powder is sugar-free and dissolves completely in soft foods such as yogurt, pudding and apple sauce. It can also be mixed with any hot or cold beverage, including juice, coffee and water, although it is not recommended in carbonated beverages. The flavor-free version can be used in cooking and baking, and doesn't alter the consistency or taste of the food.
Benefibre products are considered gluten free, according to the definition established by the Food and Drug Administration and the Codex Alimentarius Commission, states Drugs.com. The powder contains less than 20 parts per million of gluten, and people who are gluten-intolerant or suffer from Celiac disease should not take Benefibre products unless instructed by their doctors.
Benefibre is available is several forms, including chewables and caplets, according to Drugs.com. A version with added calcium is available, although it's not recommended for kidney or heart disease patients, or for individuals on a potassium-restricted diet. Additionally, it comes as a heart-healthy supplement with added vitamins B-6, B-12 and folic acid.