Calculate the length of time required to lose 13 lb on the following dietary plans. The weight reduction comes from utilization of body fat, which provides 9000 kcal of internal energy per kg of fat, or 4100 kcal per lb.
(a) The Mahatma Gandhi Diet: A complete starvation diet, with no physical activity. Assume a BMR of 1860 kcal/day.
(b) South Beach: An extreme diet of 1110 kcal/day, with only light activity requiring 150 kcal/h for 14 h and sleep requiring 80 kcal/h for 10 h.
(c) The Michael Phelps Diet: A moderate diet of 1995 kcal/day, with the same energy expenditure as in diet b, except for 1 hour of exercise, requiring an additional 500 kcal.

Calculate the length of time required to lose 13 lb on the following dietary plans. The weight reduction comes from util...
Box 15-2 Kilocalorie Adjustment Necessary for Weight Loss 454 g (1 lb) per week there needs to be a 500 kcal To lose 454 g (1 energy deficit per day. BASIS OF ESTIMATION: 1 lb of body fat = 454 g 1 g of pure fat = 9 kcal of body fat = 7.7 kcal (differences due to water in fat cells) 254 9 x 7.7 kcal/g = 3496 kcal/454 g of body fat (or -3500 kcal) 500 kcal energy...