I wanted to pass on the information from my naturopath; he's been practicing 25 years, and as well is a professor at Bastyr University, has taught in endocrinology; gastrointerology and other areas as well.
He said that there is a way to dissolve the Gallstones with the use of herbs; by thinning and increasing the bile in the liver; thus slowly and gently dissolving the stones.
He also said that this flush can bring about the need for surgery; by causing some kind of stones to become stuck in a bile duct, it can be dangerous. Even if it hasn't happened to anyone here, it can. I've read posts that indicate it has. One may say, they already were in my duct; I'm only saying that there is a safer and gentler way; that is according to the naturopath.
One more thing; I know I'm there's a strong bias here; but he did say, that it has been shown that these stones passed during this cleanse (flush) methods mentioned here; often consist of... you guessed it, olive oil... there is reason to believe that numbers of the stones are acutally made from the recipe you're ingesting.
Just wanted to share the opinion of a professional.