Nicholas S. Prust

Nicholas Prust advises domestic and foreign clients on regulatory requirements for food, dietary supplements, pharmaceuticals, and food and drug packaging under federal, state, and foreign laws and regulations. In the food regulatory area, Nicholas works with clients to meet their needs and establish an appropriate regulatory status for their product or process in the most efficient way possible,e.g., through the filing of a Generally Recognized as Safe (GRAS) notification or Food Contact Notification (FCN), a Keller and Heckman opinion letter, or a letter of no objection.

Nicholas also has experience in counseling clients on anticipating and responding to enforcement actions, including California's Proposition 65 matters and Food and Drug Administration (FDA) Warning Letters. Nicholas has counseled clients on a variety of other issues, such as import and export issues, and all manner of marketing and labeling claims, including nutrition labeling, labeling under the National Organic Program, and both mandatory and voluntary bioengineered (BE) food disclosures.

Prior to joining Keller and Heckman, Nicholas was an associate in private practice, focusing on corporate litigation. As a corporate litigator, Nicholas worked primarily with clients to defend against shareholder derivative claims and breach of contract claims in the Delaware Court of Chancery. Nicholas has also worked on the plaintiff side and assisted clients in filing similar claims. Additionally, he has worked on cases in front of the U.S. District Court of Delaware and the Delaware Family Court, including pro bono work on a child custody case. Nicholas’ litigation background assists him as he analyzes and advises clients on the litigation risks that they may face.

While in law school, Nicholas served as a senior staff editor on Georgetown’s The Food and Drug Law Journal. He was also a member of the Center for Applied Legal Studies, where he successfully obtained asylum for an Afghan refugee. Additionally, he interned for the Department of Homeland Security and was a summer law clerk for the Department of Justice. As an undergraduate student, Nicholas received an Honors Bachelor of Science in Pre-Veterinary Medicine and Animal Biosciences and was a summer research intern at the National Institutes of Health, where he studied opportunistic pathogens associated with HIV. His varied legal background and his scientific training help him to counsel clients on a variety of complex matters, which often involve scientific issues.

Awards

•Best Lawyers: Ones to Watch in America: Administrative / Regulatory Law, 2026

Insights & In the News

Food & Chemicals Unpacked: The Notorious NAD: Challenge Accepted?

09.08.2023
Podcast

Lawsuit Alleges PFAS in Pomegranate Juice

02.21.2023
Blog: The Daily Intake

FDA Sued for Denying Petition Related to Antibiotic Use

02.17.2023
Blog: The Daily Intake

More Insights

Best Law Firms Features Keller and Heckman in 2026 Edition

Press Release
11.06.2025