For Durkheim the result of the division of labour is positive in that there is no need to compete in the sense of struggling just to survive. Division of Labour. The division of labour is, then, a result of the struggle for existence, but is a mellowed dnouement.
Recommended daily calorie intakes vary across the world. According to the National Health Service (NHS), UK, the average male adult needs approximately 2,500 calories per day to keep his weight constant, while the average adult female needs 2,000. US authorities recommend 2,700 calories per day for men and 2,200 for women.
Furthermore the age, gender, height and weight of a person will also determine their daily calorie requirement. The average adult female requires about 1,800 to 2,000 calories per day while the average adult male needs about 2,200 to 2,500 calories per day. Most people depend on their appetite to determine when they need more calories or not.