I started using Tony Ferguson (weight loss meal replacement) shakes last year and managed to lose 10 kg. Three months later I started using the soups as well. Around that time I developed a painful and desperately itchy rash mainly on my leg and sometimes it would spread to other parts of my body. My doctor gave me steroid cream and I didn't realise the cause of the rash until I heard you speak. When I looked at the packets, the soups I had been eating all contained flavour enhancers you talked about (621, 627, 631, 635). When I stopped eating them the rash went away. - Marian, NSW