It really is that simple. There are many ways to lose weight, but dropping sugar (in all it's forms) is the most straightforward. It's the closest thing to a 'weight hack' I've ever seen.
If you are currently overweight, just cut out carbs completely for 3 months..don't bother to count calories; don't fret about nonsense like whether your food is organic, or free range, or locally sourced. Just stop eating sugar. No rice, no potatoes, no bread, no sugared soft drinks, no pasta.