These include nonfat dairy products or processed foods . Finally , there are foods that you should absolutely avoid . These include meat , margarine or other oil products , avocadoes , nuts , dairy products , olives , sugar and alcohol . You should also avoid products that are commercially prepared .

Generate a question about the above context.
Why should the recipient avoid commercially prepared products ?
Available choices: *They tend to have a low fat content .; *They tend to be a cheaper option .; *They tend to have a myriad of chemicals .; *None of the above choices .;