Dunkin' Donuts finds itself in the midst of a legal battle as a $5 million class-action lawsuit unfolds. The lawsuit alleges discriminatory practices against lactose intolerant customers who choose non-dairy alternatives like soy, almond, or oat milk.

According to Business Insider, the lawsuit filed in the U.S. District Court for the Northern District of California, seeks class certification and involves 10 Dunkin' customers who claim to have paid a surcharge for plant-based or lactose-free milk between 2018 and 2023 in California, New York, Texas, Colorado, Massachusetts, and Hawaii.

The lawsuit highlights Dunkin's practice of accommodating customers with specific dietary needs, offering modifications like caffeine-free or sugar-free options at no extra cost. However, it claims that the coffee giant imposes surcharges for lactose intolerant or allergic customers seeking non-dairy alternatives, alleging violations of the Americans with Disabilities Act (ADA) and state anti-discrimination laws.

According to ABC News, in addition to seeking $5 million in damages, the plaintiffs are pushing for a jury trial to address the alleged discriminatory practices.

Dunkin' has acknowledged the lawsuit by filing a waiver on Friday and is expected to respond by March 4.