Found this on the Internet:

"This procedure is so effective that is proved of dissolving kidney stones 1 inch thick in 2 treatments, plush flushing away all the other minor gravel. during the morning drink 6 can of classic Coke (no diet or caffeine free ones) within 2 hours time; right after briefly steam a bunch of asparagus, puree it in a blender and eat it right away; for the rest of the day drink as much water as possible, to help the body flush the kidney from the Coke itself and rehydrate the body from the severe dhhydration caused by the sugars in the Coke. since Coke itself is quite bad (sugar, phosphororic acid (!) and caffeine), while drinking it address your physical body, programming it to utilize the drink for healing purposes, and not for the Sugar and caffeine "high" . Your body will do exacly so, provided you instruct him. I have a liver-gallbladder flush as well for those interested in."

I think the active ingredient in the coke is phosphoric acid and the asparagus acts as a diuretic.. it should work but Why drink coke!!! all that Sugar & caffeine etc...why not just buy phosphoric acid and eat the asparagus!!!

Also found another site say more or less the same thing!

"Six cans of Classic Coca-cola (no other brand or type) within a two hour period, followed by four to eight ounces of pureed asparagus....the phosphoric acid in the coke helps break down the stones and the asparagus acts as a diuretic to flush out the tiny crystals..I have never used this with a patient, but I have heard several doctors swear by it (they've used it with patients and themselves!)"