I just looked at the nutrition info for Whitey's. It's not as bad as I would have expected. I'll have to eat there more often. A single White Castle without cheese is 135 mg, a double is 200mg. The cheese only adds 20 calories, but 115 mg of sodium. So, cheeseburgers need to be avoided. The Fries are only 15 mg. If you keep the portion sizes reasonable, this doesn't look too bad.
Let's see... 2 doubles and an order of fries = 595 calories and 415 mg sodium. Not too bad. Fat is a little high. But, this would be a convenient quick meal that wouldn't screw with a low sodium diet.
Now, eating a whole 30 pack of single's would be 4200 calories w/ 4050 mg sodium. Or, even worse, 30 pack of cheeseburgers... 4800 calories w/ 7500 mg of sodium.
I got slightly different numbers:
For one WC cheeseburger:
Calories 200 Calories from Fat 99
Total Fat 11g
Just curious... Where did you get those numbers? I got mine directly from the White Castle website which lists the following for a cheeseburger:
Calories from fat 90
Total fat 9 g
Cholesterol 15 mg
Sodium 250 mg
In either case, 30 of them is obviously excessive.
It's almost like your numbers include 2 slices of cheese. Wait, isn't there half a slice of cheese on a WC cheeseburger? Perhaps there used be a full slice? The cheese adds 2g fat + 115 mg sodium. And, that would pretty much explain the difference.