Calories, the great filler...

I didn't know this, but instant noodles have a lot of calories! 470 in fact. I couldn't believe it when my friend told me the average daily intake per person is 2500 calories. How can instant noodles have that much? It's like noodles and flavouring!!! But what surprised me even more was that it had more calories than my Ensure Plus (Plus has more calories than normal). It's basically a meal replacement drink that my doctor got me to drink since I don't have time to eat breakfast and I need to gain some weight. So yeah, I'm thinking wth, I get "filler" out of eating instant noodles? Maybe I got this whole thing wrong (I almost never watch what I eat nor know anything about nutrients, % daily intake, etc.), but it just makes no sense how instant noodles would have that much. Especially since I eat a minimum of 2 packs each time... that's like 940 every time, which is more than the supposed 1/3 daily intake. Damn, now I'm thirsty...