negative zero calorie foodsI am sorry to be the bearer of bad news, but true story: there is no such thing as a negative-calorie food.

I don’t care how many pictures you see on Facebook, Pinterest or Twitter claiming otherwise: every food contains calories. Every bite of food we eat contains fuel to power us through our lives. Anyone who tells you otherwise is living in a fairy tale or trying to sell you something.

Celery, blueberries, grapefruit, radishes, spinach (even fresh, bagged baby spinach) … they all have calories.

Rhubarb contains calories. So do cucumbers. Even if you mash them up and make them into a smoothie — you’ll still be fueling up.

The good news is that all of these foods are nutrient dense and low in calories, which make them weight-loss friendly, and they also aren’t the types of foods we tend to overindulge on, as they fill our stomachs up quickly.

The second truth of this is that it’s challenging enough to get some people to eat produce — if they have to believe veggies and fruits have magical qualities (as in, they somehow “burn” fat) in order to eat them — well, a part of me is willing to live with that.

I wrote a whole diatribe (and then erased it) about how gullible smart people like us can be when it comes to diet advice and things we see on the Internet. Why do we do that?

But in the meantime, if you’d like more info on the negative-calorie deal, here’s the scoop from the American Council on Exercise when it comes to negative-calorie foods. And here’s a news story from Time on diet myths.