A settlement stemming from a lack of gluten-free foods available to students at a Massachusetts university could serve as a precedent for people with other allergies or conditions, including peanut sensitivities or diabetes. Institutions and businesses subject to the Americans With Disabilities Act could be open to lawsuits if they fail to honor requests for accommodations by people with food allergies.

Colleges and universities are especially vulnerable because they know their students and often require them to eat on campus, Eve Hill of the Justice Department's civil rights division says. But a restaurant also could be liable if it blatantly ignored a customer's request for certain foods and caused that person to become ill, though that case might be harder to argue if the customer had just walked in off the street, Hill says.

The settlement with Lesley University, reached last month but drawing little attention, will require the Cambridge, Mass., institution to serve gluten-free foods and make other accommodations for students who have celiac disease. At least one student complained to the federal government after the school would not exempt the student from a meal plan even though the student couldn't eat the food.