The heated argument about ketchup storage continues since Heinz reintroduced this long-standing question: should ketchup go ...

Ketchup is king in the condiment aisle, but it's for more than just dipping fries. You can mix it into your meat, stir it ...

This story appears in the February 2019 issue of National Geographic magazine. Ketchup—that cheerful red sauce sold in handy glass bottles—first came on the American market in the 19th century.