Glucomannan And Calcium Hydroxide

Glucomannan is a soluble dietary fiber derived from the konjac root, a plant native to Asia. It is processed into a powder and then often combined with calcium hydroxide, an alkaline substance used to help it form a gel.

Manufacturers add glucomannan and calcium hydroxide to foods as a thickener and gelling agent. It is commonly found in low-carbohydrate and low-calorie noodle products, such as shirataki noodles, because it absorbs water and expands, providing bulk with very few calories.

Glucomannan is generally recognized as safe (GRAS) by the FDA for use as a food ingredient. It is a source of soluble fiber, which may help with feelings of fullness and support digestive health. JECFA has evaluated glucomannan and established an acceptable daily intake. Some people may experience digestive discomfort like bloating or gas when consuming large amounts of glucomannan.