Fiber Testing Guide
Find the Ideal Dietary Fiber Testing Method for Your Needs
As the industry experts in fiber, Medallion Labs offer several dietary fiber methods to achieve your testing goals. It is important to note that many of these methods are not one-size-fits-all. That's why we've put together this guide - to help you choose the best approach for your specific needs.
Disclaimer: Follow our simple steps to make your selection. This tool is meant as a guide, however, test selection is the responsibility of the customer. If you need assistance, request help from our team.
Please reach out if you still have questions about choosing your fiber method.
Based on your input, we’ve selected the option that appears to align best with your needs
Medallion Lab’s Fiber Testing Capabilities
| Total, Soluble & Insoluble Fiber Tests | Method |
|---|---|
| Fiber (CODEX Definition) - Total, Soluble, InsolubleYour selection | AOAC 2011.25 |
| Fiber (Gravimetric) - Total, Soluble, InsolubleYour selection | AOAC 991.43 with modifications |
| Fiber (Rapid Integrated Method) - Total, Soluble, InsolubleYour selection | AOAC 2022.01 with modifications |
| Fiber (Resistant Oligosaccharides) - Total, Soluble, InsolubleYour selection | AOAC 2001.03 with AOAC 991.43 digestion |
| Total Fiber Tests | Method |
|---|---|
| Fiber (CODEX Definition) - TotalYour selection | AOAC 2009.01 |
| Fiber (Gravimetric) - TotalYour selection | AOAC 991.43 with modifications |
| Fiber (Rapid Integrated Method) - TotalYour selection | AOAC 2017.16 with modifications |
| Fiber (Resistant Oligosaccharides) - TotalYour selection | AOAC 2001.03 with AOAC 991.43 digestion |
Frequently asked questions
Some matrices require special method variations to complete testing. Please call out any of the following ingredients:
- Gums: Xanthan, Guar, and/or Acacia Gums
- Fiber Ingredients: Tapioca Fiber, FiberSym, Galactomannan, and Hydroxypropylmethylcellulose (HPMC)
- Thickeners: Konjac, Psyllium, Fenugreek, and Carrageenan
- Sweeteners: Stevia
Our online form will have prompts when selecting dietary fiber testing that may ask about special ingredients. Please select all appropriate prompts to ensure that we carry out the most accurate testing
RS4 is a sensitive fiber ingredient that requires special prep to ensure accurate testing.
According to the 2020 FDA guidelines, AOAC 2011.25 is the recommended fiber method for nutritional labels. This method, however, may not capture fiber best for every sample matrix or fiber source and it is important to carefully review fiber sources and regulations for your product and labeling.
While IMO is not currently considered a dietary fiber in the United States, several of our fiber methods will include IMO in the fiber result if the ingredient is present. Medallion Labs will not be able to adjust the fiber results to take into account the IMO content. If IMO ingredients are being used, adjustments may be needed for accurate labeling in the United States and we recommend companies to work with a food consultant or regulation expert.
Depending on the Fiber testing you select different fiber components will be reported. Here are the different kinds of fiber captured in each one:
- Insoluble Dietary Fiber: Non-digestible insoluble fiber
- Soluble Dietary Fiber Gravimetric: High molecular weight fiber
- Soluble Dietary Fiber HPLC: Very soluble fiber, long chain carbohydrates or low molecular weight soluble fiber
- Soluble Dietary Fiber Total: Non-digestible soluble fiber
- Total Dietary Fiber: Sum of the Insoluble and Soluble dietary fiber
Share Your Results and Get Personalized Guidance
Complete this form to share your selections and concerns. Our team will review your input and provide expert guidance to help you choose the ideal test for your product.
"*" indicates required fields