Regucol is a combination of psyllium husks bacterial cultures and inulin contains lactobacillus acidophilus bifidobacterium bifidum contains inulin which is a natural carbohydrate psyllium husks are naturally high in fibre and act like a sponge when mixed with fluid absorbing more than twenty times their weight lacobacillus acidophilus and bifidobacterium bifidum are two bacterial cultures included to help maintain the balance of bacteria within the intestinal tract regucol is a combinat