More workers eating at their desks

(CNN) - Lunch break? What's that? According to research by human resources consulting firm Right Management, 65 percent of American workers eat lunch at their desks or don't take a break at all.

CareerBuilder, another employment consultant, found that 40 percent of executives take a brown-bag lunch and 17 percent eat fast food.

There are no federal laws which requires companies to provide a lunch break, but 22 states have meal break laws.

Experts say workers are more efficient if they have an uninterrupted meal break. They also say it's healthier.

Some restaurants say they've noticed an increase in carryout orders during the work week, instead of workers dining in.