What Are Modified Milk Ingredients?

“And, it’s made with real liquid milk,” said the elderly woman in a chef’s hat and apron at the grocery store.   She handed me a small, free sample of Monterey Jack cheese produced by a Canadian cheese company.   “And, it has no modified milk ingredients in it.” She added. “Oh really?” I said. “And what exactly are modified milk ingredients?”   “Oh, it’s kinda like a paste or a powder, but