Eating low-carb doesn't reduce weight directly, but indirectly. It reduces hunger because you don't get the sugar spike and subsequent crash which causes you to

Eating low-carb doesn't reduce weight directly, but indirectly. It reduces hunger because you don't get the sugar spike and subsequent crash which causes you to feel hungry 2 hours later. Instead, you get hungry 6 hours later. This helps reduce snacking between meals and total daily calories. Low-carb also helps because the carbs you eat are turned to sugar which your pancreas then has to produce insulin to tell your body to push that sugar into fat cells, increasing weight.