As you know, I have been a customer for many years. At one time, I was suffering from heart arrhythmia from an unknown cause, which doctors were unable to diagnose. After doing my own research, sulfites in the red wine that I was drinking are what I suspected as a probable cause, even though they affect less than 1% of the population. As I am a heavy nutritional supplement taker, this could amplify the effect. Upon buying and using Wine Sensitive, the symptoms completely disappeared. Your product fills a definite need, and I thank you for it.