Calories are the way we measure food energy. The food pyramid shows how much food and the varieties of food our bodies need to take in each day.
The food we eat is used by our body as energy in everything we do. We even burn energy/calories when we sleep.
Here are estimates of about how many calories you could use if you do these athletic activities for 30 minutes and you weigh between 75 and 150 lbs.*
Here are estimates of about how many calories you could use if you do these non-athletic activities for 30 minutes and you weigh between 75 and 150 lbs.*
*The calories you use will depend on your actual weight and the real level of activity during the 30-minute period. The number shown is an estimate for the weight range with minimal activity.