As well as aiding weight loss, All-In-One can also help you gain or maintain weight. True All-In-One can be used to help tip your energy balance into surplus while knowing that the calories you are consuming are good for you! Instead of using it to replace meals, try taking All-In-One as a snack (as well as your usual meals) to bump up your macronutrient consumption. If you want to maintain your weight calorie consumption should equal calorie exertion, so ensure All-In-One is counted in your calorie intake.