I've heard that red wine has some anti-inflamitory properties that can be beneficial for the heart, and perhaps in effect help migate some of the damage done from eating a high fat diet. And one glass shouldn't be calorific enough to do serious damage to a diet. But I really, really doubt that it would "counteract fat" in the sense that Alli does, or anything like that.
All the calories you consume do count, and wine won't negate any of them. But it might be wise to to use some of your calorie allotment for a glass of wine. Just don't expect it to melt the pounds away!
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