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.
Fiber Needs. For adults aged 14 to 50, the adequate intake for fiber is 25 grams daily for women and 38 grams daily for men. This is about 14 grams of fiber per 1,000 calories. For adults older than 50, women need 21 grams per day and men need 30 grams daily. Very high fiber intake, more than 60 grams, creates health risks.