Regucol is a combination of psyllium husks inulin bacterial cultures contains lactobacillus acidophilus bifidobacterium bifidum contains inulin which is a water solublr fibre 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 whilst inulin is a water soluble fibre and a natural carbohydrate lactobacillus acidophilus and bifidobacterium bifidum are two bacterial cultur