What’s a calorie? ADVERTISEMENT 559 viewsSeptember 22, 2011 0 Eric September 22, 2011 0 Comments 5 Answers ActiveVotedNewestOldest 0 Heidi0 Posted 0 Comments The most simple answer would be that it is a measurment of energy. All food contains calories (energy) this is why you need to monitor you calorie intake. If you consume more energy than you burn. You will gain weight. You are viewing 1 out of 5 answers, click here to view all answers. Register or Login