I usually eat a package of ramen noodles before each ride and I find it usually keeps me full for 50-60 miles even if I'm pushing all out as long as I have a bottle of gatorade or something with me.
So I looked at the package tonight; each 200 calorie serving contains:
Total fat: 7g
-Saturated fat: 3.5g
Total Carbs: 26g
It packs a 5:1 carb to protein ratio, which people say is pretty good. It's got a little saturated fat, which I don't mind. It's got the sodium I need. It's got fiber. And all that for less than 10 cents a serving.
Is there a down side?