Your trusted partner in
clinical nutrition research.

GI Labs Services

Weight Loss

At GI Labs, we adhere to the highest standards for clinical nutrition research.

We meet your needs by providing accurate, independent, and confidential results with competitive pricing, fast turnaround times, and client ownership of intellectual property.


With obesity rates rising, weight loss has become a relevant primary or secondary measure in the testing we offer at GI Labs. With options that include integrating specific foods into research participants’ diets, GI Labs offers a variety of ways to assess weight loss and is able to customize the measure to your unique research objectives.

Our extensive subject pool and experience with long-term trials allows us to recruit appropriate and reliable subjects for your weight loss trial. Our longstanding relationship with many of our study participants allows us to ensure compliance to study guidelines and minimize loss due to subject attrition.

Acute Testing

Long-Term Trials

Scientific Review

Senior Scientists


Dr. T. Wolever MD, PhD

Vice President

Dr. A. Jenkins PhD, RD