Because konjac is rich in fiber and low in calories, it can help people feel full, which helps control weight. In addition, konjac also contains a variety of amino acids and trace elements, which have special effects on the prevention and treatment of diabetes and hypertension. Konjac also has antibacterial and antioxidant properties, and is sometimes used to make skincare products. Soluble fiber helps lower cholesterol and blood glucose levels. A diet high in fiber may also help regulate bowel movements, prevent hemorrhoids, and help prevent diverticular disease. Take konjac with plenty of water, preferably before a meal. There’s no approved, standardized dose of konjac. Recommended dosages vary by manufacturer and what you’re using the konjac for. Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. We avoid using tertiary references. You can learn more about how we ensure our content is accurate and current by reading our editorial policy.

Adding an additional fiber supplement (guar gum or alginate) didn’t have an impact. Konjac and cholesterol Keithley JK, et al. (2013). Safety and efficacy of glucomannan for weight loss in overweight and moderately obese adults.Under the Dietary Supplement Health and Education Act of 1994 (DSHEA), a firm is responsible for determining that the dietary supplements it manufactures or distributes are safe and that any claims made about them are supported by adequate evidence to show that they’re not false or misleading.

A 2008 systematic review found that konjac may help lower total cholesterol, LDL (or “bad”) cholesterol, and triglycerides. Konjac also reduced body weight and fasting blood sugar. Cooking: Konjac can be cooked alone or with other ingredients. For example, it can be used as an auxiliary ingredient in a very famous Chinese dish, spicy crayfish. It can absorb the flavor of spices and soup in the food, which is very delicious.Bateni E, et al. (2013). The use of konjac glucomannan hydrolysates (GMH) to improve the health of the skin and reduce acne vulgaris. Chen H-L, et al. (2008). Supplementation of konjac glucomannan into a low-fiber Chinese diet promoted bowel movement and improved colonic ecology in constipated adults: A placebo-controlled, diet-controlled trial. A later study found that konjac lowered LDL cholesterol and recommended its use to reduce the risk of cardiovascular disease. Konjac and skin health Birketvedt GS, et al. (2005). Experiences with three different fiber supplements in weight reduction.