A bottle of 250ml pure milk can generate about 140 kcal of heat. The content of protein in milk is relatively constant, about 3.0%. It mainly contains casein and whey protein, which belongs to high-quality protein and is easily digested and absorbed by human body.

The fat content is 2.8%-4.0%. Carbohydrate accounts for 3.4%-7.4%. Milk is rich in minerals and vitamins. Low-fat or skim milk has a low fat content, and the calories will be reduced accordingly.

Heat introduction

Calorie (Cal for short), transliterated from English Calorie, is defined as the heat required to raise 1 gram of water to 1 degree Celsius at 1 atmospheric pressure; Calorie is an energy unit, which is still widely used in nutrition measurement and fitness manual. The international standard unit of energy is joule.

As the legal unit of food calories, joules are widely used in Europe, while calories are used in the United States. Although Joule is the legal unit in Chinese mainland and Taiwan Province Province, it is still widely used in Chinese mainland and Taiwan Province Province because of tradition.

definition

Calories are units of energy. We often associate calories with food, but in fact they apply to any substance that contains energy.

Simply put, 1 calorie of energy or heat can raise the temperature of 1 gram of water by 1 degree Celsius at one atmospheric pressure. 1 calorie is approximately equal to 4. 186 joules (joules are commonly used units of energy in physics).