What is a calorie?
In our daily life we hear and see calories in grocery products, but exactly what does it mean? A calorie is a unit of measuring energy. The food we eat everyday is not measured by weight or size, but how much energy it contains. For example, when you see something contains 250 calories which describes how much energy your body could get by eating or drinking it. Calorie is a simply technical word for energy.
Calories are not bad for your body since your body needs them for energy. Consuming very little calories over time will not allow your body to function properly and can negatively impact your health. Eating too much calories and not burning enough by any physical activity can lead to gain weight over time. Understanding how many calories your body needs each day will help you choose which food are best for you.
How many Calories do a person need
People differ from size and metabolism, the amount of calories person should consume vary from several factors. These factors are persons height, weight, age and metabolism. For example, if persons height is 5 feet and 10 inches with body weight 70 kg need approx 3000-3500 calories to increase weight and to maintain 2000-2500 calories. Calorie calculators are available online, which can be used to determine how many calories a person need in a day based on several factors.
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