I have been drinking a glass of wine with most evening meals - and sometimes two - and a bit more at weekends - and I've lost nearly 20 pounds in three months. I should really cut down but it hasn't prevented weight loss. I am pretty rigorous about everything else though. I don't snack and I cut out all obvious carbs except vegetables and the occasional waferthin rye cracker.
You have to have some pleasures in life!