What is the difference between heat and calories

Calories and heat are an indispensable part of our body. Every day our body will be exposed to heat and a lot of calories, because it is very important to us. Calories are indispensable to the body, but consuming too much will cause obesity, which has become a tangled problem. So what is the difference between calories and heat?

In the process of life activities, all life activities of the human body require energy, such as synthetic reactions of material metabolism, muscle contraction, gland secretion, etc. And this energy mainly comes from food.

The nutrients contained in animal and plant foods can be divided into five major categories: carbohydrates, lipids, proteins, minerals and vitamins, and together with water, there are six major categories. Among them, carbohydrates, fats and proteins can release energy through oxidation in the body. The three are collectively referred to as "energy-generating nutrients" or "heat source qualities"

Calories

A calorie is a unit of energy that is still widely used in nutrition measurements and fitness manuals. The international standard unit of energy is the joule. There are two types of calories:

Kcal, also written as capital C, is most commonly seen on food labels. It is equivalent to the amount of heat required to raise the temperature of 1000 grams of water from 14.5 degrees Celsius to 15.5 degrees Celsius at 1 atmosphere of pressure, which is approximately equal to 4186 joules of internal energy.

Small calories, also recorded as cal, are more common in scientific research documents. 1000 small calories = 1 large calorie

Calories and basal metabolic expenditure

Generally speaking, adults need at least 1,500 calories a day to maintain body functions. This is because even if you lie still, your body still needs energy to maintain body temperature, heart and lung function, and brain function. Basal metabolic consumption varies depending on individual height, weight, age, and gender.

In the process of human survival, the body needs to come into contact with calories every day. The food we eat and the beverages we drink consume calories and calories. The higher the nutritional value of the food, the higher the calories it contains, which will cause obesity. Therefore, maintaining a balanced diet every day is the most important thing.