Keith Belk, PhD
Dr. Keith Belk is the Director of Eurofins’ Advanced Learning Institute and Professor and Holder of the Monfort Endowed Chair, Center for Meat Safety & Quality, Colorado State University (CSU), and as an Adjunct Professor in the Colorado School of Public Health. Previously, he served as Professor and Head of the Department of Animal Sciences at CSU. He earned B.S. and M.S. degrees from CSU, and a Ph.D. from Texas A&M University. He currently serves in a consulting role as the Director of Education for Eurofins Rapid Microbiology Laboratories, LLC. Dr. Belk is also a member of the International Committee for the National Western Stock Show, the Board of Directors for the International Stockmen’s Educational Foundation, on the Academic Advisory Committee for the Meat Institute Protein PACT, and on the technical advisory committees for Sustainable Beef, JBS, Colorado Premium Foods, and Hawkins.
Below are resources from Dr. Keith Belk:
Ethylene glycol (EG) and diethylene glycol (DEG) are toxic industrial chemicals that have no place in consumer health products. Unfortunately, products ranging from cough syrups to dietary supplements have been found to contain these contaminants, often with tragic consequences.
As the category of sports nutrition matures, so does the science behind it, and few ingredients illustrate that shift better than creatine. Once viewed as a niche performance supplement, creatine has entered the mainstream, driven by a growing body of research, broader consumer education, and innovation in product formats.
For food manufacturers, product labeling represents both a regulatory responsibility and a powerful tool for brand differentiation. Label claims help consumers make informed purchasing decisions while allowing brands to highlight the unique nutritional or functional benefits of their products. These claims are tightly regulated by the U.S. Food and Drug Administration (FDA), requiring strict adherence to defined standards, substantiation protocols, and disclosure rules.
Botanical Reference Materials (BRMs) are the foundation of reliable High Performance Thin- Layer Chromatography (HPTLC) identity testing. They provide the verified chromatographic fingerprint against which botanical samples are compared. Learn how to safeguarding both industry integrity and consumer confidence.
Supplement and OTC products often require non-traditional testing approaches such as radiolabel studies or DEA Schedule I compound analysis. Knowing when and how to apply these specialized methods is key to regulatory success.
While advanced technology often takes center stage in discussions about scientific accuracy, the age and preparation of samples are equally critical. By prioritizing the seemingly small details, researchers can ensure that their findings stand up to scrutiny and contribute meaningfully to scientific progress.
In the dietary supplement and ingredient industry, protecting consumer health and meeting regulatory expectations are nonnegotiable. One critical aspect of quality control is residual solvent testing. Residual solvents, volatile chemicals used during manufacturing, can remain in products if not properly removed.
As the pet supplement market continues to expand, particularly in preventative care, accurate quantification of MSM has become essential. Manufacturers require robust analytical methods to ensure that label claims are substantiated and that formulations meet quality standards while complying with AAFCO ingredient definitions and state feed regulations.
When evaluating fiber testing approaches, it’s important to review how results differ across sample matrices tested by both the new and previous methods. More laboratories are implementing the Rapid Integrated Dietary Fiber Methods - AOAC Official Methods 2017.16 and 2022.01. The AOAC 2017.16 method measures the insoluble fiber fraction (IDF) and soluble fiber fraction that precipitates in 78% ethanol (SDFP) together, and separately measures the soluble dietary fiber not precipitated in 78% ethanol (SDFS) by HPLC.
In the competitive and highly regulated pet food industry, ingredient authenticity is more than a quality metric; it's a cornerstone of consumer trust and brand integrity. As demand for functional ingredients grows, so does the risk of adulteration. Manufacturers must be equipped with advanced testing strategies to safeguard their supply chains and ensure label claims are accurate.
