I found a slight difference in giving up caffeine and all those diet drinks! glutamate, aspartame (in almost all powders or liquids to put in drinks and splenda). Less chocolate, pop limited to pretty much gingerale and an occasional sparkling lemonade. Coke, rootbeer, dr. pepper, etc. Pretty much all of em' have caffeine and loads of sugar.

It's certainly worth a try! I haven't noticed a huge difference, however any little differences to not make it worse is great!