What is the difference between calories and physical calories?
In physics and nutrition, calories is a unit of energy measurement. The calorie of the diet is based on the calorie of physics, but has a limited, more specific application and is not used precisely. There are two types in physics: a gram of calories is the amount of energy needed to increase the temperature of 1 gram of water by 1 ° Celsius, while the calorie kilogram is the amount of energy to increase the temperature of 1 kilogram of water by 1 ° C. The diet version is based on the latter physics measurement. (The diet should be written with the "C" capital.) This is just one way of differing. Diet calories are also much more approximate than those in physics.
The idea of a dietary calorie is that the body must balance energy consumed by energy spent to master weight. Weight loss can be achieved by increasing human energy production by physical exercise and reducing energy intake by monitoring diet. Dietologists, after the terminology of physics, use calories to measure this energy exchange. DietaryCalories are based on the amount of energy that the body can absorb, rather than the amount of energy of its own food.
Diet calories are calculated on the basis of standardized values approximated for various food components. It is estimated, for example, that fat has 9 calories of diet calories per gram, while sweeteners without sugar such as sorbitol have only 2.5 per gram. It is estimated that proteins and carbohydrates have 4 gram. Some ingredients in foods such as water, vitamins and minerals do not have caloric content and do not take into account the measurements.
Nutritional instructions generally indicate that adult women consume 2,000 diet calories a day and adult men consume 2,500. Children, sedentary lifestyle, elderly people and those trying to lose weight should consume less than these instructions, while very active individuals should consume more. These instructions are inLMI general and do not apply to every person. If you are unsure of the amount of calories in the diet you should consume daily, consult a doctor or nutritionist.