Could lettuce be throwing off my calories?

I eat a head (about 1000g) of iceburg lettuce in a day about every other day. I count the dressing i use to the gram. I am keeping a steady 500 calorie deficit but this is not counting the lettuce. It's the only thing i do not count since i was told it takes as much energy to digest it as it adds to your daily intake. I always figured it was about 40 calories a head (idk where i got that number...). Anyway i look today and i find its more like 140 per 1000g. Now if i eat a head of lettuce about 4 times a week that means i just loss 1/6 of a pound less per week right? Has anyone else had this epiphany and done any research? When i search all i can find is things about celery being "negative calorie" but nothing about lettuce. Thanks in advance.

There is no such thing as a "free calorie". Yes, lettuce counts! Weigh that sucker and count it.

Yep, you gotta count it. By the way, why do you like Iceburg lettuce? i've never understood that! It tastes like water, plus it has no nutritional value.

i looove iceberg lettuce with turkey slices and flatbread

the best

 

An entire head of lettuce? Are you mixing other vegetables in that salad? Just my opinion but you would be better off nutritionally if you mixed in some dark leafy greens, spinach, and other vegetables such as cucumbers, peppers, tomatoes, carrots, radishes. It would be more balanced and maybe you are already doing this.

Hi Striker, to get more bang for your caloric buck, try Romaine lettuce.  It has the same pleasant crunch as Iceberg but with about twenty times the nutrients. 

Romaine is delicious as is red leaf lettuce.  That iceberg just reminds me of crunching ice cubes.

Yeah, but it's also twice the price :( Thanks for everyone's input, i'm gonna count it now and see what happens. I'm giving blood tomorrow so maybe that'll compensate haha i guess giving blood nixes 600 cals off your intake... now... to resist the cookie once more...

I personally don't count my lettuce... That would be silly of me. I eat a good half a head of lettuce a day. Gotta love it. Love salads. I count other veggies, but lettuce is so piddly.

I dont count lettuce either; especially iceberg. Its basically green crunchy water.