The community has played a significant role in the history of the petroleum industry in Canada. Oil exploration is known to have occurred in the early 20th century, but Fort McMurray's population remained small, no more than a few hundred people.
The answer is they can be, but aren't always. In general, vegetarian diets are lower in saturated fats, cholesterol and animal protein, and higher in fiber and folate than non-vegetarian diets.
Therefore, being a vegetarian negatively affects the probability of being in the first category of food expenses ($0 to $300). This is consistent with our hypothesis that vegetarians tend to have larger food bills than non-vegetarian consumers.