
The CICO (energy in, energy out) strategy to weight administration is common as a result of it appears easy. In case you eat fewer energy than you burn via train and each day residing, you’ll reduce weight (1). Soak up extra energy than it is advisable to gas your life-style, and also you’ll acquire weight (1). In case 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 may mislead you into pondering that weight administration boils all the way down to a math equation.
On this article, we’ll debunk among the commonest misconceptions surrounding CICO and supply a transparent understanding of the way it works with the intention to get essentially the most from this software.
The Delusion: CICO is Easy
One of the crucial widespread 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 realize or reduce weight.
The reality: weight reduction is sophisticated
“Whereas the CICO technique is easy in idea—eat fewer energy than you burn so as to reduce weight—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, affect 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 a casual means of expressing the vitality 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 weight loss plan? Not precisely, nevertheless it’s necessary to do not forget that it’s one issue amongst many in the case of your weight.

The Delusion: You Can Eat No matter You Need as Lengthy as You Keep Inside Your Calorie Restrict
A typical fantasy surrounding the CICO strategy 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 stick with your CICO calorie objective, it doesn’t matter what forms of meals you eat or while you eat them, comparable 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, acquire, or keep 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 train us the significance of the vitamins in these energy (2).” Whenever you focus solely on the large 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 mild and quick when it’s darkish. Disruptions to this rhythm can quick circuit your physique’s suggestions alerts and response to meals, leading to a better likelihood of weight acquire (3).
The takeaway
The standard of your meals and meal timing impacts your starvation and general well being (2, 3). Concentrate on consuming high quality meals, comparable to protein- and fiber-rich, nutrient-dense meals, and getting most of your meals inside sunlight hours (2, 3).
The Delusion: 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 truth is that our our bodies don’t reduce weight in such a predictable means. Components like metabolism, muscle mass, stress, and genetics affect how your physique responds to calorie deficits (1). As you reduce weight, your physique will burn fewer energy, slowing down your progress (4). Principally, your private consequence is much less easy 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 shoppers 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: Current analysis means that dropping pounds in a gradual vogue is best in 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 School of Saint Benedict and accomplished her dietetic internship via 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 knowledgeable, media character, diet marketing consultant, and writer. Cassetty is a former diet director for Good Housekeeping and the co-author of the guide Sugar Shock.
The Delusion: CICO is Simply About Meals and Train
One other widespread false impression is that the CICO strategy is simply 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 life-style components depend
Whereas meals and train are important parts of weight administration, so, too, are different consuming and life-style behaviors. As an 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 components like age, muscle mass, and even sure medical circumstances. All of which means that merely reducing energy or growing train could not at all times result in the anticipated outcomes (1).
The takeaway
CICO isn’t just about weight loss plan and train. To attain sustainable weight reduction and general wellness, it’s important to contemplate sleep, stress administration, and weight loss plan high quality (1, 2). That doesn’t imply trying to overtake your whole habits without delay. Making some tweaks to your weight loss plan to attain a calorie deficit is a good first step!
The Delusion: 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 task in weight administration (2)
Living proof: A small, well-designed 2019 research in contrast calorie consumption and weight acquire on an ultra-processed meals weight loss plan to a minimally processed weight loss plan. Folks adopted one weight loss plan after which switched to the alternative weight loss plan 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 weight loss plan consumed about 500 extra energy per day than these on the minimally processed weight loss plan.
The processed meals group gained a mean of two kilos through the two-week interval. Nevertheless, these identical people misplaced the identical quantity of weight (about two kilos) on the much less processed weight loss plan 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 can assist you select nutritious meals for weight administration. “Monitoring with MyFitnessPal may also help you not solely determine your whole each day energy for weight reduction, but in addition key vitamins, comparable to protein, fiber, and saturated fats, to assist your well being and health targets.”

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The Delusion: CICO Is the Similar as “Eat Much less, Transfer Extra”
CICO stands for energy in, energy out, so it’s straightforward to know why many individuals suppose it boils all the way 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 components, comparable 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 a casual means of expressing the vitality stability equation as an alternative of the end-all be-all for weight administration (1).
The Delusion: Counting Energy is Crucial 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 essential
Research present that being conscious of your meals high quality and consuming habits (comparable to 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 persons 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). Conscious consuming, portion management, and specializing in the standard of your weight loss plan are extra methods that can assist you obtain your targets with out strict monitoring (8, 9). Although, MyFitnessPals’s new Premium voice logging characteristic makes monitoring meals—and energy—sooner than earlier than within the app.
CICO Works the Similar for Everybody
The parable
A typical CICO fantasy is that everybody will lose or acquire 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, in case you have a sluggish 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 generally is a useful framework, nevertheless it’s one among many components that affect your physique weight. So it’s useful to tailor your weight reduction strategy to your wants and circumstances (1).
Steadily Requested Questions (FAQs)
Are you able to out-exercise your weight loss plan?
A sweaty train sesh feels powerful, so that you may suppose it might probably counter the injury from an unhealthy weight loss plan. However this merely isn’t true. Analysis exhibits that train alone doesn’t promote vital weight reduction (10, 11).
Plus, a weight loss plan filled 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 probably’t outdo an unhealthy consuming sample (11).
Can CICO be used for something apart from weight reduction?
CICO is a method to categorical the vitality stability equation, so it may be used for weight reduction, weight acquire, 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. Except for 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 acquire (13). In case you’re making an attempt 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 consider 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 more durable to keep up a calorie deficit or stability.
Moreover, consuming at constant occasions—particularly earlier within the day—may also help regulate blood sugar ranges and assist a wholesome metabolism, as your physique processes meals extra effectively while you’re lively (14).
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