Unless you're losing mostly lean mass, that 10 lbs/week represents a 5000 kcal energy deficit every day. With base energy needs around 2500 kcal/day for most p

Unless you're losing mostly lean mass, that 10 lbs/week represents a 5000 kcal energy deficit every day. With base energy needs around 2500 kcal/day for most people, no diet will get you there.