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.
The recommended amounts of calcium for adults are as follows: 1  For pre-menopausal women 25-50 years old and post-menopausal women on estrogen replacement therapy: 1,000-1,200 milligrams of calcium per day. 1,500 milligrams of calcium per day is recommended for pregnant or lactating women.