Ever been running errands and find yourself so hungry that you’re tempted to blow your diet on fast food even though you don’t know how many calories or fat grams you’ll be buying? Well, wonder no more. If you’ve got a cell phone, Diet.com’s Nutrition on the Go service is just a text message away.

To use it, send the name of the restaurant and the name of the item you’re considering to DIET1 (34381). For example, you could text “Mcdonald’s BigMac” and Diet.com will send a text message back telling you calories, fat, carbs, and protein in one of those suckers (as in, 540 260, 45 and 25, respectively.)

Sure, at some point it’s likely that every restaurant will begin posting that information on their display so you know it before ordering, but with fast-food restaurants trying to diversify their appeal so much these days by offering everything from DVD rentals to car insurance online quotes at the drive-up, it’s likely you won’t actually read that data if you’ve got a screaming car full of kids.

So go ahead, add them to your cell phone’s contact list: Nutrition on the Go - diet1 (34381). But don’t tell them that I sent you.

Tags: fast food restaurants, how many calories