Question: How many calories do you need a day?
The number of calories you need per day depends on your age, height, weight, gender and activity level. The average caloric intake for both men and women ages 18-30 is between 2000-2400. After that, the caloric intake should be reduced, unless you continue to maintain a moderately active to very active lifestyle.
The more active you are, the more calories you will need to fuel your body, while those living a more sedentary lifestyle will require less calories. If you are trying to lose weight, you will probably want to consume fewer calories than someone looking to maintain their weight.