we are older couple (70 and 65 yrs old) with BMI of 28,5 and 25,6 and we both just want to go down to a healthy BMI range and lose up to a stone. easy? not at all. we even tried cambridge diet. expensive, and not sustainable. we lost the weights but soon put it back on. if it is true that the mind and body need 12 weeks to change a habit, HERE WE GO! hope we can do this together.