The CICO (energy in, energy out) strategy to weight administration is standard as a result of it appears easy. Should you eat fewer energy than you burn by means of train and each day dwelling, you’ll drop pounds (1). Absorb extra energy than you should gas your way of life, and also you’ll achieve weight (1). Should you meet your physique’s calorie wants on the nostril, you’ll keep the identical (1).
This straightforward strategy is efficient for a lot of, however there are a number of CICO myths that may oversimplify issues. These myths would possibly mislead you into considering that weight administration boils right down to a math equation.
On this article, we’ll debunk a number of the most typical misconceptions surrounding CICO and supply a transparent understanding of the way it works so that you could get probably the most from this instrument.
The Fantasy: CICO is Easy
Some of the widespread CICO myths is that it’s a easy power stability equation. The premise is that every one it takes is a calorie surplus or deficit to realize or drop pounds.
The reality: weight reduction is difficult
“Whereas the CICO methodology is easy in idea—eat fewer energy than you burn to be able to drop pounds—it isn’t the entire image of how protected and sustainable weight reduction occurs,” says Melissa Jaeger, RD, LD, Head of Vitamin at MyFitnessPal (1).
Your physique is complicated. Many components, like genetics, age, and hormones, impression physique weight (1). Additionally, each particular person physique processes vitamins from meals a bit of in another way (2).
In different phrases, your physique isn’t a calculator. Weight reduction is extra than simply energy in, energy out.
The takeaway
Though CICO actually stands for energy in vs. energy out, CICO is simply an off-the-cuff means of expressing the power stability equation (1).
Nevertheless, weight administration isn’t so simple as that. The standard of your meals, your metabolic price, and particular person variations all affect how your physique manages weight (1, 2). So, does this imply you shouldn’t do a CICO eating regimen? Not precisely, but it surely’s necessary to do not forget that it’s one issue amongst many on the subject of your weight.

The Fantasy: You Can Eat No matter You Need as Lengthy as You Keep Inside Your Calorie Restrict
A typical delusion surrounding the CICO strategy is that every one energy rely the identical means, whether or not they come from protein, carbs, fat, or processed meals.
This offers you the impression that so long as you stick with your CICO calorie aim, it doesn’t matter what forms of meals you eat or whenever you eat them, reminiscent of late at evening.
The reality: there’s much more to it
It’s useful to concentrate on the variety of energy your physique must lose, achieve, or preserve your weight, nonetheless, there’s far more to it than that (1).
In accordance with Jaeger, “One draw back of focusing solely on energy in vs. energy out is that it doesn’t educate us the significance of the vitamins in these energy (2).” Once you focus solely on the large image numbers and never the elements that make up these numbers it may be difficult to undertake more healthy habits and honor our our bodies’ starvation and satiety cues throughout our weight reduction journey (2).
When you eat influences weight administration, too. Our our bodies are designed to eat when it’s mild and quick when it’s darkish. Disruptions to this rhythm can brief circuit your physique’s suggestions alerts and response to meals, leading to the next probability of weight achieve (3).
The takeaway
The standard of your meals and meal timing impacts your starvation and total well being (2, 3). Concentrate on consuming high quality meals, reminiscent of protein- and fiber-rich, nutrient-dense meals, and getting most of your meals inside sunlight hours (2, 3).
The Fantasy: Reducing 3,500 Energy At all times Equals One Pound of Weight Loss
A longstanding perception is that 3,500 energy is the variety of energy in a pound, so it’s been thought that decreasing your calorie consumption by this a lot will lead to a pound of weight reduction.
The reality: weight reduction could be unpredictable
The fact is that our our bodies don’t drop pounds in such a predictable means. Elements like metabolism, muscle mass, stress, and genetics impression how your physique responds to calorie deficits (1). As you drop pounds, your physique will burn fewer energy, slowing down your progress (4). Principally, your private final result is much less simple than the maths suggests.
The takeaway
As a substitute of counting on the three,500-calorie rule, deal with creating sustainable habits—like consuming filling meals—that assist long-term well being along with weight administration (2).
Non-starchy veggies and protein are a filling duo, so I encourage my purchasers to make a behavior of together with at the least 20 grams of protein and a half plate of non-starchy veggies at every meal. Bonus: Latest analysis means that reducing weight in a gradual vogue is best on your metabolism (5).
In regards to the Consultants
Melissa Jaeger, RD, LD is the Head of Vitamin for MyFitnessPal. Melissa obtained a Bachelor of Arts in Vitamin (DPD) from the Faculty of Saint Benedict and accomplished her dietetic internship by means of Iowa State College. In Could 2024 she was acknowledged because the Registered Younger Dietitian of the 12 months awarded by the Minnesota Academy of Vitamin and Dietetics.
Samantha Cassetty, MS, RD, is a nationally acknowledged meals and diet knowledgeable, media persona, diet advisor, and writer. Cassetty is a former diet director for Good Housekeeping and the co-author of the e-book Sugar Shock.
The Fantasy: CICO is Simply About Meals and Train
One other widespread false impression is that the CICO strategy is just about how a lot you eat and the way a lot you train, which can lead you to miss different necessary components that affect weight administration.
The reality: Many different way of life components rely
Whereas meals and train are vital elements of weight administration, so, too, are different consuming and way of life behaviors. As an example, poor sleep can disrupt hormones that regulate starvation and satiety, resulting in overeating (6). Moreover, excessive stress can improve ranges of cortisol, which can promote fats storage, particularly within the stomach space (7).
Your metabolic price is influenced by components like age, muscle mass, and even sure medical situations. All of which means that merely reducing energy or growing train could not at all times result in the expected outcomes (1).
The takeaway
CICO isn’t just about eating regimen and train. To realize sustainable weight reduction and total wellness, it’s important to contemplate sleep, stress administration, and eating regimen high quality (1, 2). That doesn’t imply trying to overtake your entire habits without delay. Making some tweaks to your eating regimen to attain a calorie deficit is a good first step!
The Fantasy: All Energy Are Created Equal
A typical perception is {that a} calorie is a calorie, no matter its supply—whether or not these energy come from strawberries or strawberry ice cream.
The reality: The standard of your energy performs a job in weight administration (2)
Living proof: A small, well-designed 2019 research in contrast calorie consumption and weight achieve on an ultra-processed meals eating regimen to a minimally processed eating regimen. Individuals adopted one eating regimen after which switched to the alternative eating regimen after a washout interval–the time between the 2 diets when there’s no prescribed consuming plan (2).
Though the meals offered to each teams had the identical quantities of energy, fats, sugar, fiber, carbs, and protein, contributors on the ultra-processed eating regimen consumed about 500 extra energy per day than these on the minimally processed eating regimen.
The processed meals group gained a mean of two kilos throughout the two-week interval. Nevertheless, these identical people misplaced the identical quantity of weight (about two kilos) on the much less processed eating regimen over two weeks following that consuming sample.
The takeaway
Meals high quality is a vital a part of the burden loss equation. Jaeger suggests utilizing MyFitnessPal that can assist you select nutritious meals for weight administration. “Tracking with MyFitnessPal might help you not solely determine your complete each day energy for weight reduction, but in addition key vitamins, reminiscent of protein, fiber, and saturated fats, to assist your well being and health objectives.”

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The Fantasy: CICO Is the Identical as “Eat Much less, Transfer Extra”
CICO stands for energy in, energy out, so it’s simple to grasp why many individuals suppose it boils right down to consuming much less and shifting extra.
The reality: There’s extra nuance
Whereas energy and motion are a part of your power stability equation, there’s extra to it than that. (1) Different components, reminiscent of your weight historical past, genetics, muscle mass, sleep patterns, stress, and age can have an effect on your weight (1).
The takeaway
Consider energy in, energy out (AKA eat much less, transfer extra) as an off-the-cuff means of expressing the power stability equation as a substitute of the end-all be-all for weight administration (1).
The Fantasy: Counting Energy is Obligatory for CICO
On condition that CICO stands for energy in, energy out, many individuals suppose that counting energy is a compulsory a part of following the CICO strategy to weight administration.
The reality: Although useful, it’s not strictly crucial
Research present that being conscious of your meals high quality and consuming habits (reminiscent of portion management and consuming mindfully) can nonetheless result in weight administration with out monitoring each single calorie (8, 9).
Nevertheless, calorie counting can present construction and consciousness, and a 2021 research discovered that individuals are extra profitable with weight reduction utilizing monitoring instruments, together with diet-tracking instruments like MyFitnessPal (10).
The takeaway
Whereas calorie counting could be useful, it’s not the one path to success with CICO (8, 9). Aware consuming, portion management, and specializing in the standard of your eating regimen are further methods that can assist you obtain your objectives with out strict monitoring (8, 9). Although, MyFitnessPals’s new Premium voice logging feature makes monitoring meals—and energy—quicker than earlier than within the app.
CICO Works the Identical for Everybody
The parable
A typical CICO delusion is that everybody will lose or achieve weight on the identical price in the event that they comply with the identical caloric deficit or surplus. In different phrases, individuals mistakenly consider that it’s all in regards to the numbers.
The reality: Everyone seems to be totally different
In actuality, CICO doesn’t account for particular person variations in metabolism, genetics, muscle mass, sleep patterns, and stress, all of which may considerably affect your weight (1).
As an example, when you’ve got a gradual metabolism and are over 50, you’ll doubtless have totally different outcomes from somebody with a quick metabolism who’s 25, even when you’re adhering to the identical caloric deficit or surplus (1).
Key takeaway
CICO generally is a useful framework, but it surely’s certainly one of many components that affect your physique weight. So it’s useful to tailor your weight reduction strategy to your wants and circumstances (1).
Ceaselessly Requested Questions (FAQs)
Are you able to out-exercise your eating regimen?
A sweaty train sesh feels robust, so that you would possibly suppose it might counter the injury from an unhealthy eating regimen. However this merely isn’t true. Analysis reveals that train alone doesn’t promote vital weight reduction (10, 11).
Plus, a eating regimen stuffed with saturated fats, sodium, and extreme sugar can undermine your well being (12). Train is a health-promoting exercise, and there are many causes to take part in it usually–together with assist with weight upkeep–however it might’t outdo an unhealthy consuming sample (11).
Can CICO be used for something aside from weight reduction?
CICO is a method to specific the power stability equation, so it may be used for weight reduction, weight achieve, or weight upkeep (13).
Do you at all times should be in a calorie deficit for CICO to work?
There are lots of components concerned in weight reduction. Other than a calorie deficit, the standard of meals you eat, entry to meals, hormones, genetics, stress, and sleep patterns all play a job (1).
Moreover, you’ll want an power surplus for CICO to work for weight achieve (13). Should you’re attempting to keep up your weight, you’ll want roughly the identical variety of energy in vs. energy out (13).
Does meal timing matter with CICO?
Whereas calorie stability is a think about weight administration, meal timing can affect starvation, power ranges, and metabolism (3). Consuming irregularly or skipping meals can result in overeating later within the day, which makes it more durable to keep up a calorie deficit or stability.
Moreover, consuming at constant occasions—particularly earlier within the day—might help regulate blood sugar ranges and assist a wholesome metabolism, as your physique processes meals extra effectively whenever you’re lively (14).
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