Sure that works. I lost 10 kg only drinking beer (2-3 months because everyone said beer was the fat cause which it is not; it is a combination); losing weight is hard but not if you have the power to cut something out you normally do eat.

Just do not eat as much. I eat half a pizza instead of a whole one (If I do what my mind wants I eat 3-4 napolitana pizzas in a go; I eat half of one now), drink less etc and it works. Unfortunately I love food so on culinary trips the flesh is weak, but I lose it quickly by eating varied and little.