Chicago ? McDonald’s Corp. faces at least three lawsuits claiming the fast-food giant misled the public after it acknowledged last week its french fries contain milk and wheat ingredients.

Debra Moffatt, of Lombard, Ill., seeks unspecified damages in a suit filed Friday in Chicago.

Her attorney, Thomas Pakenas, said his client has celiac disease, which causes gastrointestinal symptoms set off by eating gluten, a protein found in wheat.

McDonald’s, based in Oak Brook, Ill., said Monday that wheat and dairy products are used to flavor its fries.

Before its acknowledgment Monday, the company had quietly added “Contains wheat and milk ingredients” to the french fries listing on its Web site.