FiberWorks is a custom soluble tapioca fibre syrup which is based on dietary fibre, with a very high fibre content over 90% on a dry basis. Fiberworks is mostly used in keto/diet/healthier bars because it doesn’t spike insulin levels and has only 1.4% natural sugar from the fibre (which is glucose and maltose, no fructose). Fiberworks is not an IMO and only Fiberworks is accepted globally as a true dietary fibre source. 90% of bars in the US use Fiberworks , in Australia more and more brands are slowly catching on and choosing it over IMO. Fiberworks does not have any negative impact on the stomach. Metasweet  is an IMO prebiotic syrup, available in tapioca or corn. It is a prebiotic fibre and the natural sugar source from the fibre ranges from 4% to 7%. MetaSweet is the most common fibre syrup used throughout Australia for 3 main reasons: It is a little cheaper than Fiberworks . Its sugar is still very low, so it can meet all the requirements and it is functional. Unlike the rest of the world, in Australia & N.Z, you can label IMO as “soluble tapioca fibre” and it is acknowledged as a source of prebiotic fibre in Australia and N.Z. So if you are operating in Australia and want to use a prebiotic fibre, Metasweet is a great choice and it also has no negative impact on the stomach. However, if you are focusing on keto/diet/diabetic then Fiberworks is the best choice.