I bought a bottle from GNC when I first started Atkins. Frankly, I can't say it had any noticeable results. I can say, the taste was terrible. However, I have read a few articles that say Apple Cider Vinegar does help remove (I think it was plaque) impurities from the blood. I still take some from time to time but I don't expect it to help in weight loss at all. Better safe than sorry.