Pascal Le Segretain Model/actress Liberty Ross arrives at the 2013 Vanity Fair Oscar Party hosted by Graydon Carter at Sunset Tower on February 24, 2013 in West Hollywood, California. Jason Merritt Actress Halle Berry arrives at the Oscars at Hollywood & Highland Center on February 24, 2013 in Hollywood, California. Michael Buckner Singer Jennifer Lopez arrives at the 84th Annual Academy Awards at the Hollywood and Highland Center on February 26, 2012 in Hollywood, California.
Heinz has a best by date of 15 months printed on its ketchup, if I recall correctly, but that is not the same as true expiration. That's just when the flavour/quality may begin to change. It will remain viable for quite a while after that. An unopened bottle probably just won't expire.
Ketchup is low in calories (around 15-20 calories per heaping tsp) but ketchup for the most part is high in sugar and average in sodium. There are alternatives but you do have to be reasonable and go easy. If your dumping a cup of ketchup on your food, that's a bad thing but what wouldn't be. Mustard is extremely low in calories (around 3-5 calories per heaping tsp). It does have a very very small amount of total fat but nothing significant. Mustard also contains about 1/4 the amount of sodium compares to ketchup.