THERE IS NO SAFE DIE: There is not safe diet and can not happen even if you are on 0 calori a day.In order to loose 40 lbs you need to be in negative calorirs intake of 140000, that is you need to cut down 3500 cals to loose i lb.If you need 2500 cals for your daily intake to maintain your weight and cut it down to safe intake of 800 cals under strict medical supervision, it will take you 82.35 days to loose 40 lbs.
Answered 9/28/2016
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