There is no need to sacrifice any food or drink you like, however anything you abuse will have a negative impact. Instead of focusing on your weight focus on your body fat.
Body weight is irrelevant if you weigh 200lbs with 10% body fat you're in good shape, if you weigh 190lbs with 30% body fat you have a problem.
There are no quick fixes loosing a pond fat a week is considered ideal any more it will be water and muscle, in 12 weeks you will have lost 12lbs (5.4kg) of fat, maybe that doesn't sound like a whole lot but place 11 tubs of butter on the table and that's what you will have lost, and remember you can't flex fat.
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