text: what is the best diet when you feel an onset of ms symptoms coming up?   i work with somebody who has ms and i am unaware of any special dietary needs she has, other than she can't drink alcohol because of some potential side effects with some of her medications.  i am not aware of any way to try and prevent ms through diet.  this would be difficult to proscribe because, as i understand it, doctors are not completely sure what exactly causes ms.