I react to MSG, flavour enhancer 635, metabisulphite preservatives, and yellow colour in cordial. I also have food intolerance to salicylates. From MSG, 635 flavour enhancer and metabisulphite preservatives I get very irregular pulse and atrial fibrillation. The atrial fibrillation settles down after 12-20 hrs depending on how much offending additive I have eaten (in a restaurant it is difficult to tell) - and my pulse settles down faster if I drink lots of water every hour to flush the toxins out of
my system. I've learned to read the labels and carry a reminder in my purse of the numbers to which I react when shopping. I have learned which brands or types of foods are a problem and steer clear of those. - Mary, retired nurse, Brisbane