Calories In: With the exception of water, everything you eat or drink contains Calories. Add these together and they make up your Daily Calorie intake. Because these Calories are being consumed into your body, we refer to this as “Calories in”.
Calories Out: Everything we do burns Calories, and surprisingly we burn most of our Calories for just being alive. Breathing, pumping blood around our bodies, digesting food, regulating our body temperature and even watching TV. This can make up for about two-thirds of the Calories we burn each day. This is called your Basal Metabolic Rate. (BMR)
Your BMR is the amount of Calories you burn “At Rest” or doing nothing and it’s this figure that is not factored into most dieting plans.