Starbucks is facing a lawsuit from three lactose-intolerant women who are unhappy about being charged extra for nondairy milk substitutions in beverages. The plaintiffs claim it is medically necessary for them to avoid milk. The lawsuit, which is also being brought by three California residents, alleges discrimination against people with lactose intolerance. Starbucks is being sued for $5 million for violating the ADA by charging extra for nondairy milks.