Calorie (calories) is a unit for measuring energy. One calorie is the amount that makes 1 gram of water. 1 degree Celsius, the energy used in the body or energy received from food is called "Kcal" (kcal) This is to tell us. How many calories do we eat? We can see from the label beside the box of food. This is to tell the amount of calories of food. To eat Because the body needs energy. In general, the measurement of energy is replaced by "joules", but is also commonly used as a calorie diet unit.

There are two types of calorie measurement.
         1. small calorie is the unit of heat, which is 1 calorie. The amount of heat that gives 1 g of pure water is 1 ° C higher than the atmospheric pressure of 1 Kg equals 4.186 joules.

         2. large calorie is a unit of energy derived from metabolism. Calories for food are large calorie. Is 1 calorie diet equal to 1 kcal (Kcal) or 1,000 calories, which may be called calories instead of full name. Kcal has equivalent value. The energy that causes 1 kg of water to rise 1 ° C or 4,184 kJ

         The amount of nutrients recommended per day for Thai people aged 6 years and over, which is based on energy needs 2,000 calories per day. The recommended daily intake of carbohydrates is 60% (1,200 kilo calories) or 300 grams per day, 10% protein (200k calories) or 50g per day, and 30% fat (600k calories) Or consumption should be 66.6 grams per day. If you need more or less power, increase or decrease proportion. Of all the energy required per day. Our bodies use these energies to make the body's internal systems work and store energy. Excess in the form of fat and other energy sources in the body for future use.
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