For all of you geniuses out there, what the quotisen refers to is overloading the liver with the artificial sweetener. You people who say you have never had a problem with it should step on a scale, because I know each one of you is overweight.Aspartame causes the liver to stop producing sugar because when ingested, the liver is expecting some usable calories to follow. When the calories don't come, then it turns on the hunger response to get the expected calories and makes people eat. This is why people who drink diet sodas are usually overweight.To answer the quotisen, there is a product called Optimal Liver and Kidney that is put out by Optimal Health Systems that I am using to correct a liver problem. I don't know if this will address the over-consumption of aspartame, but since it's (probably) only available through a natural health practitioner, I suggest that you find one and discuss the situation with him.Also, I would suggest that your friend stop using any kind of artificial sweeteners and begin using a protocol of water and salt (along with a few supplements) to try and correct the problem by flushing out the toxins if it hasn't caused permanent damage. This protocol can be found by clicking on the link below.