Artificial sweeteners can cause heart issues. These artificial sweeteners are unsafe - it can change how your brain fires! A sure fire way to find out what food is causing allergic reaction is simply check your heart rate before you eat then after . Heart rate goes up after you eat your allergic. I don't even need to take my pulse when my heart is beating extra hard I know I ate something that I'm clearly allergic too Going on a elimination organic diet is the best way.