Dietary Fiber methods tend to be very robust and allow for a very wide range of sample types to be tested. However, there are several ingredients that need extra attention for Medallion to accurately test them. Some examples include: Stevia, High Fat Content, RS4 Fiber, and Psyllium. We have prompts on our online submission form to help ensure that we have everything set up correctly, and it is very important to read and select the prompts that apply to your product.