No. It is impossible for a food to contain negative calories, or anything for that matter, however it does require more energy to digest celery than the celery provides, which led to it being called a negative calorie food.Most people that dispute this say it would only take 1 calorie per hour to chew it up, ignoring the rest of the digestive process which is where most energy is consumed.
There are 75 calories in 1 medium size head of iceberg lettuce (about 6" diameter).
By water lettuce, I assume you mean iceburg lettuce. I figure it would take about 4 heads of lettuce to make one pound (a medium sized head is about 250g). There are 90 calories in each head, so:90x4 = 360 caloriesThat's without any dressings, oils, spices, etc. - just the lettuce.Lettuce has been called a negative calorie food. It takes more energy to chew and digest the lettuce than it provides in calories.
15-40 calories, depending on the type of greens. Darker greens contain more calories than iceberg lettuce, for example.
diet sodas if that counts... but also, celery has negative calories actually! it has so little calories that the calories it does have, you burn while chewing it.
1 full head of lettuce is between 40 and 60 calories.
The bread (it varies based on type, size, brand, ect.) is probably, assuming you have 2 slices, between 150 and 200 calories, and the lettuce is 30 calories. So the sandwich in general is probably about 180 to 230 calories or so.
That depends on how much you are holding in each hand and whether the lettuce is whole leaf or shredded. For example, there are 2 calories in large leaf of iceberg lettuce. .
There are calories in cucumber (irrespective of the 'negative calories' theory). All food provides calories. For the calorie content of cucumber according to portion size, both with and without peel, see the page link, further down this page, listed under Related Questions. In general the negative calories theory claims that it takes more energy (calories) to digest a food than the energy (calories) contained in that food. Whether this is possible and in that sense cucumbers can be "negative calories" is not proven either way.
11 calories per 100 grams.
Water does not contain any calories
Lettuce, celery, cucumbers