I did something of a similar simple nature a couple years back.

I removed soda, alcohol, fast food and anything resembling dessert for 1 year.

I also I added 1 liter of water, 1 raw fruit and 1 raw vegetable to my diet, following this very strictly. (I ate a lot of roma tomatos like apples over the sink late at night before bed to honor the diet...)

I wish I would have tracked my body fat% because I believe it was very effective... and relatively easy to keep the diet.