# "negative-calorie" foods??

**URL:** <https://boards.straightdope.com/t/negative-calorie-foods/251119>\
**Category:** Factual Questions\
**Created:** [June 18, 2004, 9:34pm UTC](https://boards.straightdope.com/t/negative-calorie-foods/251119 "2004-06-18T21:34:47Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![plushgrass](https://avatars.discourse-cdn.com/v4/letter/p/cab0a1/32.png) [@plushgrass](https://boards.straightdope.com/u/plushgrass)\
**Post date:** [June 18, 2004, 9:34pm UTC](https://boards.straightdope.com/t/negative-calorie-foods/251119/1 "2004-06-18T21:34:47Z")

</div>

So I’m on this weightloss oriented group on yahoo. We trade tips and recipes and encouragement, it’s a good group.

The other day this ditzy woman comes on and “helpfully” posts a list of what she called “negative calorie” foods. Someone asked what a “negative calorie” food was and she piped up:

" it means they burn more calories during the eating and digestion process than the item has calories itself."

Here is the list:

apples  
apricots  
artichokes  
asparagus  
beet greens  
beets  
blackberries  
blueberries  
broccoli  
brussels sprouts  
buffalo fish  
cabbage  
cantaloupe  
carrots  
cauliflower  
celeriac  
celery  
cherries  
chervil  
chicory  
chinese cabbage  
chives  
clams  
cod  
corn  
crabs  
cranberries  
cucumbers  
currants  
damson plum  
dandelion greens  
eggplant  
endive  
flounder  
frogs legs  
garlic  
grapefruit  
grapes  
green beans  
honeydew  
huckleberries  
kale  
kohlrabi  
kumquats  
leeks  
lemons  
lettuce  
limes  
lobster  
loganberries  
mangoes  
mushrooms  
muskmelons  
mussels  
mustard greens  
nectarines  
okra  
onions  
oranges  
oysters  
papaya  
parsley leaves  
parsnips  
peach  
pears  
peas  
peppers  
pineapple  
pomegranates  
prunes  
pumpkin  
quince  
radishes  
raspberries  
red cabbage  
rhubarb  
rutabagas  
sauerkraut  
scallions  
sea bass  
shrimps  
sorrel  
spinach  
squash  
steaks  
strawberries  
string beans  
tangerines  
terrapin  
tomato  
turnips  
watercress  
watermelon

So, I could gorge myself on a huge shrimp appetizer, followed by steaks (note the plural on the list), a half-dozen ears of corn on the cob, hig scoops of squash, and follow it up with a quart or two of peaches and pears and lose lots of weight?  
Where did this crazy idea come from and do people actually believe it? :smack:

---

<div class="post-metadata">

**Author:** ![AbbySthrnAccent](https://avatars.discourse-cdn.com/v4/letter/a/eb9ed0/32.png) [@AbbySthrnAccent](https://boards.straightdope.com/u/AbbySthrnAccent)\
**Post date:** [June 18, 2004, 9:42pm UTC](https://boards.straightdope.com/t/negative-calorie-foods/251119/2 "2004-06-18T21:42:19Z")

</div>

[The Master speaks.](http://www.straightdope.com/columns/040507.html)

---

<div class="post-metadata">

**Author:** ![plushgrass](https://avatars.discourse-cdn.com/v4/letter/p/cab0a1/32.png) [@plushgrass](https://boards.straightdope.com/u/plushgrass)\
**Post date:** [June 18, 2004, 9:51pm UTC](https://boards.straightdope.com/t/negative-calorie-foods/251119/3 "2004-06-18T21:51:39Z")

</div>

> [@AbbySthrnAccent](#):
>
> [The Master speaks.](http://www.straightdope.com/columns/040507.html)

Thanks. I did read that and the [snopes.com](http://snopes.com) thing also.

I guess my question is more "why on earth would anyone believe such a crock. STEAK is “negative calorie”??

---

<div class="post-metadata">

**Author:** ![plushgrass](https://avatars.discourse-cdn.com/v4/letter/p/cab0a1/32.png) [@plushgrass](https://boards.straightdope.com/u/plushgrass)\
**Post date:** [June 18, 2004, 10:02pm UTC](https://boards.straightdope.com/t/negative-calorie-foods/251119/4 "2004-06-18T22:02:19Z")

</div>

In response to the woman’s “list”, someone posted this:

"Wow, thanks! I think tonight I’ll have a 1/2 pound lobster tail (they’re pretty  
cheap here in Maine), a couple ears of corn and a big bowl each of  
broccoli and green beans. For dessert, I can gorge on all-you-can  
-eat fruit salad made from apples, mangoes, apricots, peaches, pears,  
strawberries, etc. Oranges are on there to, I looove OJ! I’ll get a  
quart of that too.

How much wieght do you think I’ll lose with just tonight’s  
dinner alone? You think maybe a pound? I’m so excited!!"

In response, the woman replied:

“There is no need to be nasty. Or stupid. Of course it depends on quantity”

How do people who believe in this figure that it “depnds on quantity”. In other words, if a 50-calorie apple is actually “negative calorie”, then that implies that I will burn more than 50 calories by ingesting it. Right? Let’s say for argument’s sake that the apple has an alleged “negative-calorie” value of -10. So I lose 10 calories by eating it. If I eat two apples, I’m down 20 calories. 10 apples, 100 calories, and so on. Hey, 100 calories is significant! If I could manage to choke down a whole bag of 20 apples, then by the negative-calorie crowd’s logic, I am now in the hole by a whopping 200 calories.

Wow. :o)

---

<div class="post-metadata">

**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [June 18, 2004, 11:57pm UTC](https://boards.straightdope.com/t/negative-calorie-foods/251119/5 "2004-06-18T23:57:10Z")

</div>

She missed out potatoes. No really, they are a negative calorie food if all you do is carry a huge sack of them them up and down a long flight of stairs.
