Calorie

Calorie: nf  A "calorie" is the name commonly given to the large calorie (Cal) or kilo-calorie (Kcal), the "real" calorie (cal) of physicists being a thousand times smaller. One calorie is the amount of heat required to pass 1 liter of water at 15 to 16 ° C (at normal atmospheric pressure). It is also the unit used in nutrition to measure the energy intake of food and the needs of the body. The international unit adopted to express this contribution is the kilojoule (kJ) 1 kJ = 0,24 Kcal; 1 Kcal = 4,18 kJ. Energy needs are determined by age, sex, height, weight, climate, individual activity. In recent years, due in particular to sedentarization, energy expenditure has decreased. According to the Recommended nutritional intake for the French population, published by the National Center for Studies and Recommendations on Nutrition and Food (CNERNA), it is estimated that a man should absorb between 2 and 100 Kcal per day, depending on whether her physical activity is reduced or important, and a woman between 3 and 000 Kcal. Growth can increase needs by 50% and physical activity increases needs by 200 to 400 Kcal per hour. The energy richness of various foods depends on their protein content (1 g = 4,1 Kcal), lipids (1 g = 9,3 Kcal) and carbohydrates (1 g = 4,1 Kcal); mineral salts, trace elements, vitamins and water do not provide calories; alcohol provides seven calories per gram (ie from 600 [wine] to 3 [cognac] Kcal per liter). For a good food balance, the calories must come from proteins (from 12 to 15%), lipids (from 30 to 35%) and carbohydrates (from 50 to 55%). Excess can lead to obesity or cardiovascular disease. Calorie: "Calorie" is the name commonly given to the large calorie (Cal) or kilo-calorie (Kcal), the "real" calorie (cal) of physicists being one thousand times smaller. One calorie is the amount of heat required to pass 1 liter of water at 15 to 16 ° C (at normal atmospheric pressure). It is also the unit used in nutrition to measure the energy intake of food and the needs of the body. The international unit adopted to express this contribution is the kilojoule (kJ) 1 kJ = 0,24 Kcal; 1 Kcal = 4,18 kJ. Energy needs are determined by age, sex, height, weight, climate, individual activity. In recent years, due in particular to sedentarization, energy expenditure has decreased. According to the Recommended nutritional intake for the French population, published by the National Center for Studies and Recommendations on Nutrition and Food CNERNA), it is estimated that a man should absorb between 2 and 100 Kcal per day, according to that her physical activity is reduced or important, and a woman between 3 and 000 Kcal. Growth can increase needs by 50% and physical activity increases needs by 200 to 400 Kcal per hour. The energy richness of various foods depends on their protein content (1 g = 4,1 Kcal), lipids (1 g = 9,3 Kcal) and carbohydrates (1 g = 4,1 Kcal); mineral salts, trace elements, vitamins and water do not provide calories; alcohol provides seven calories per gram (ie from 600 [wine] to 3 [cognac] Kcal per liter). For a good food balance, the calories must come from proteins (from 12 to 15%), lipids (from 30 to 35%) and carbohydrates (from 50 to 55%).