They are purported to contain more than 50x the amount of resveratrol than is in a glass of red wine. While I love a good glass of wine, these were pretty good too -- they taste like a decadent, Upper East Side version of a candy bar (and I don't even like chocolate!). It is kind of hard to believe that they are actually good for you.
They have 190 calories per bar, which is a little higher than a protein bar or something of that ilk, but given the resveratrol, it makes up for the calorie splurge. It also is fairly filling, and you can taste a little bit of a good wine flavor. I keep thinking "decadent" -- because they are!
I definitely will be rebuying these, and I hope you guys will give them a shot too.