The CICO (energy in, energy out) method to weight administration is fashionable as a result of it appears easy. In case you eat fewer energy than you burn by way of train and day by day residing, you’ll drop some weight (1). Absorb extra energy than it’s essential gas your life-style, and also you’ll achieve weight (1). In case you meet your physique’s calorie wants on the nostril, you’ll keep the identical (1).
This straightforward method is efficient for a lot of, however there are a number of CICO myths that may oversimplify issues. These myths may mislead you into pondering that weight administration boils right down to a math equation.
On this article, we’ll debunk among the most typical misconceptions surrounding CICO and supply a transparent understanding of the way it works with the intention to get probably the most from this instrument.
The Fantasy: CICO is Easy
One of the crucial frequent CICO myths is that it’s a easy vitality stability equation. The premise is that every one it takes is a calorie surplus or deficit to achieve or drop some weight.
The reality: weight reduction is difficult
“Whereas the CICO methodology is easy in idea—eat fewer energy than you burn in an effort to drop some weight—it isn’t the entire image of how secure and sustainable weight reduction occurs,” says Melissa Jaeger, RD, LD, Head of Vitamin at MyFitnessPal (1).
Your physique is complicated. Many elements, like genetics, age, and hormones, impression physique weight (1). Additionally, each particular person physique processes vitamins from meals a bit 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 vitality stability equation (1).
Nonetheless, 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 food regimen? Not precisely, however it’s vital to keep in mind that it’s one issue amongst many in relation to your weight.

The Fantasy: You Can Eat No matter You Need as Lengthy as You Keep Inside Your Calorie Restrict
A standard fantasy surrounding the CICO method is that every one energy depend the identical means, whether or not they come from protein, carbs, fat, or processed meals.
This provides you the impression that so long as you persist with your CICO calorie objective, it doesn’t matter what forms of meals you eat or if you eat them, corresponding to 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 way more to it than that (1).
Based on 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).” While you focus solely on the massive image numbers and never the parts 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 gentle and quick when it’s darkish. Disruptions to this rhythm can brief circuit your physique’s suggestions alerts and response to meals, leading to a better likelihood of weight achieve (3).
The takeaway
The standard of your meals and meal timing impacts your starvation and total well being (2, 3). Give attention to consuming high quality meals, corresponding to protein- and fiber-rich, nutrient-dense meals, and getting most of your meals inside daytime (2, 3).
The Fantasy: Chopping 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 might be unpredictable
The fact is that our our bodies don’t drop some weight 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 some weight, your physique will burn fewer energy, slowing down your progress (4). Mainly, your private end result is much less simple than the mathematics suggests.
The takeaway
As an alternative of counting on the three,500-calorie rule, concentrate on 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 no less than 20 grams of protein and a half plate of non-starchy veggies at every meal. Bonus: Latest analysis means that shedding weight in a gradual vogue is best in your metabolism (5).
Concerning the Specialists
Melissa Jaeger, RD, LD is the Head of Vitamin for MyFitnessPal. Melissa acquired a Bachelor of Arts in Vitamin (DPD) from the Faculty of Saint Benedict and accomplished her dietetic internship by way of Iowa State College. In Might 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 professional, media character, 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 frequent false impression is that the CICO method is barely about how a lot you eat and the way a lot you train, which can lead you to miss different vital elements that affect weight administration.
The reality: Many different life-style elements depend
Whereas meals and train are vital parts of weight administration, so, too, are different consuming and life-style behaviors. For example, poor sleep can disrupt hormones that regulate starvation and satiety, resulting in overeating (6). Moreover, excessive stress can enhance ranges of cortisol, which can promote fats storage, particularly within the belly space (7).
Your metabolic price is influenced by elements like age, muscle mass, and even sure medical circumstances. All of which means that merely slicing energy or growing train could not at all times result in the anticipated outcomes (1).
The takeaway
CICO is not only about food regimen and train. To realize sustainable weight reduction and total wellness, it’s important to think about sleep, stress administration, and food regimen high quality (1, 2). That doesn’t imply making an attempt to overtake your entire habits without delay. Making some tweaks to your food regimen to realize a calorie deficit is a superb first step!
The Fantasy: All Energy Are Created Equal
A standard 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 task in weight administration (2)
Living proof: A small, well-designed 2019 research in contrast calorie consumption and weight achieve on an ultra-processed meals food regimen to a minimally processed food regimen. Folks adopted one food regimen after which switched to the other food regimen after a washout interval–the time between the 2 diets when there’s no prescribed consuming plan (2).
Though the meals supplied to each teams had the identical quantities of energy, fats, sugar, fiber, carbs, and protein, members on the ultra-processed food regimen consumed about 500 extra energy per day than these on the minimally processed food regimen.
The processed meals group gained a median of two kilos throughout the two-week interval. Nonetheless, these identical people misplaced the identical quantity of weight (about two kilos) on the much less processed food regimen over two weeks following that consuming sample.
The takeaway
Meals high quality is a vital a part of the load loss equation. Jaeger suggests utilizing MyFitnessPal that will help you select nutritious meals for weight administration. “Tracking with MyFitnessPal might help you not solely determine your complete day by day energy for weight reduction, but in addition key vitamins, corresponding to 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 know 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 vitality stability equation, there’s extra to it than that. (1) Different elements, corresponding to 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 vitality stability equation as an alternative of the end-all be-all for weight administration (1).
The Fantasy: Counting Energy is Obligatory for CICO
Provided that CICO stands for energy in, energy out, many individuals suppose that counting energy is a compulsory a part of following the CICO method to weight administration.
The reality: Although useful, it’s not strictly obligatory
Research present that being aware of your meals high quality and consuming habits (corresponding to portion management and consuming mindfully) can nonetheless result in weight administration with out monitoring each single calorie (8, 9).
Nonetheless, 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 might 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 food regimen are extra methods that will help you obtain your objectives with out strict monitoring (8, 9). Although, MyFitnessPals’s new Premium voice logging characteristic makes monitoring meals—and energy—quicker than earlier than within the app.
CICO Works the Identical for Everybody
The parable
A standard CICO fantasy 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, folks mistakenly imagine 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 might considerably affect your weight (1).
For example, if in case you have a gradual metabolism and are over 50, you’ll seemingly have totally different outcomes from somebody with a quick metabolism who’s 25, even should you’re adhering to the identical caloric deficit or surplus (1).
Key takeaway
CICO is usually a useful framework, however it’s certainly one of many elements that affect your physique weight. So it’s useful to tailor your weight reduction method to your wants and circumstances (1).
Incessantly Requested Questions (FAQs)
Are you able to out-exercise your food regimen?
A sweaty train sesh feels robust, so that you may suppose it could actually counter the injury from an unhealthy food regimen. However this merely isn’t true. Analysis reveals that train alone doesn’t promote vital weight reduction (10, 11).
Plus, a food 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 recurrently–together with assist with weight upkeep–however it could actually’t outdo an unhealthy consuming sample (11).
Can CICO be used for something apart from weight reduction?
CICO is a strategy to categorical the vitality stability equation, so it may be used for weight reduction, weight achieve, or weight upkeep (13).
Do you at all times have to be in a calorie deficit for CICO to work?
There are numerous elements concerned in weight reduction. Apart from a calorie deficit, the standard of meals you eat, entry to meals, hormones, genetics, stress, and sleep patterns all play a task (1).
Moreover, you’ll want an vitality surplus for CICO to work for weight achieve (13). In case you’re attempting to take care of 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, vitality ranges, and metabolism (3). Consuming irregularly or skipping meals can result in overeating later within the day, which makes it tougher to take care of 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 if you’re energetic (14).
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