In each of the following questions determine whether the sentence is parallel or needs revision.

__1__ (parallel/needs revision) A high-protein diet allows the dieter to eat unlimited amounts of meat, but eating very little in the way of vegetables or starches. __2__ (parallel/needs revision) Staples in a high-protein diet include eggs, cheese, and nuts are also allowed. __3__ (parallel/needs revision) However, many people find this diet difficult to follow because they can eat only small quantities of favorite foods like bread, pasta, and potatoes.