Will drinking ensure make you gain weight?

Weight gain: Weight gain occurs when an individuals intake of calories is >> than the expenditure of calories. Most people need 22-25 kcal/kg/d to maintain weight (kcal =1 food cal). If you exercise, you burn more calories & need more fuel; couch potatoes less! to gain 1 kilo/month you need to intake 500-1000 cal/day in excess of what your body requires. It can be w/ensure or any other good source of food.