Percent composition by weight is a serious matter in the U.S., where mixed nuts have been regulated by the Food and Drug Administration since 1977. Up to that point, the phrase "mixed nuts" had been legally meaningless. A 1964 "Consumer Reports" investigation of 124 cans of mixed nuts, representing 31 brands bought in 17 American cities, determined that most mixed nuts of the time were mostly peanuts, often 75%; peanutless brands were usually dominated by cashews. Many cans bore misleading labels or were underfilled. "Consumer Reports" concluded, "What's needed of course is a Federal standard of identity...", detailing a list that of requirements that, with the exception of their desire to limit broken nuts, anticipated the 1977 rules.