it's not clear how well they'll stack up against current migraine therapies, because head-to-head studies haven't been done..

when you freeze fruits and vegetables, it locks in nutrients, and several studies have shown that this helps retain high levels of vitamins..

thanks for signing up as a global citizen. in order to create your account we need you to provide your email address. you can check out our. december 2007  (18). (image: rex/shutterstock).