I would avoid these all together. Most instant ramen noodles are packed full of MSG, sodium and fat. As a food they have very little nutritional value.
I have experienced all kinds of stomach problems from eating ramen; I consider it to be poison and would be reluctant to even eat it in an emergency. It will just make me sick.
I would look to higher quality alternatives from a health food store / natural market. They do cost more but they are actually good for you as opposed to cheap ramen.