
Energy In, Energy Out—aka, “CICO”—is a buzzword anyplace individuals discuss their weight reduction journeys lately.
However in contrast to another stylish diets, CICO is nothing new. It’s a conventional method to weight administration that comes right down to this: When you eat fewer energy than you burn, you’ll drop a few pounds (1).
Energy are the unit of vitality your physique makes use of for gasoline. The CICO technique hinges, partially, on the concept having a 3,500 calorie deficit is the equal to dropping a pound. Theoretically, in case you create a caloric deficit, you’ll drop a few pounds (1).
CICO is straightforward to follow (particularly with a calorie monitoring software like MyFitnessPal!) so it has gained momentum just lately by way of on-line communities and social media. Let’s do a deep dive into how the CICO weight loss program works and make it give you the results you want.
What’s CICO? (Energy In, Energy Out)
The CICO weight loss program is brief for energy in, energy out, and it’s a easy idea based mostly on the precept of vitality stability.
The concept is that in case you eat fewer energy (energy in) than your physique burns (energy out), you’ll drop a few pounds.
On the flip aspect, in case you eat extra energy than you burn, you’ll acquire weight. And in case you match the energy you soak up with the energy you burn, you’ll keep your present weight (1).
How It Works
CICO doesn’t limit particular meals or macronutrients like different diets, reminiscent of keto or paleo. As a substitute, it emphasizes calorie monitoring (1).
We’ll undergo decide your caloric wants and get the perfect outcomes with this weight administration technique.
Understanding caloric consumption and expenditure
On the coronary heart of CICO is the stability between caloric consumption—AKA the energy you eat from the whole lot you eat and drink—and caloric expenditure, or energy out. These are the energy your physique makes use of to gasoline the whole lot from respiratory to operating a marathon (1).
Every single day, your physique burns energy simply to remain alive. Your basal metabolic fee (BMR) is the variety of energy your physique makes use of to carry out these each day capabilities (1). (You’ll discover ways to calculate this beneath.)
The quantity of muscle you might have performs a job in your metabolism as a result of muscle tissue is metabolically lively—it burns energy at relaxation (6).
One other think about your metabolism is your physique measurement. Bigger our bodies require extra energy to keep up their measurement, which suggests in addition they burn extra energy (6). As you drop a few pounds, your physique’s caloric wants change, so that you’ll require fewer energy. Throughout a weight reduction journey, you’ll have to recalculate your BMR occasionally if you wish to keep a calorie deficit (7).
Outdoors of your BMR, further energy are burned by way of bodily exercise, together with train, strolling, and even chores like cleansing and cooking. That is the a part of your caloric expenditure that you’ve got probably the most management over (6).
Calculating basal metabolic fee (BMR)
A key step in utilizing CICO is calculating your basal metabolic fee (BMR), which tells you what number of energy your physique wants to remain alive (6). Figuring out your BMR helps you identify your each day caloric wants and offers you a baseline for monitoring your consumption and setting targets (8).
You should use MyFitnessPal BMR Calculator to simply calculate your BMR. This calculator relies on the Mifflin – St. Jeor equations and it takes your age, peak, weight, and gender to offer an estimate of what number of energy your physique burns at relaxation.
As soon as you recognize your BMR, you’ll be able to add the energy you sometimes burn in your each day actions to search out your complete each day vitality expenditure. That’s a extra correct reflection of your caloric wants than your BMR.
The significance of monitoring energy
Calorie monitoring is the spine of the CICO technique, and analysis suggests it’s additionally a vital a part of weight reduction success (9).
As an example, a 2017 examine inspired a small group of individuals to maintain meals and train diaries whereas additionally guiding them to make wholesome meals decisions. Members have been additionally instructed to weigh themselves no less than weekly (9).
What the researchers discovered is that individuals who tracked extra religiously have been extra profitable at sustaining weight reduction in comparison with uncommon and inconsistent trackers whose weight tended to fluctuate extra. The much less constant trackers misplaced weight over the summer time however gained it over the vacations (9).
This examine means that utilizing instruments like MyFitnessPal for calorie monitoring, maintaining a weight log, and assessing your weight loss program high quality might be very useful.
By logging what you eat and drink, you acquire consciousness of your consuming patterns and may higher management portion sizes and meals decisions. Plus, this stage of accountability helps keep consistency, which is vital for long-term success.
Why CICO Issues for Weight Administration
Understanding CICO is essential for weight administration, it doesn’t matter what weight loss program you select (10). Whether or not you’re following a vegan weight loss program, a paleo weight loss program, or a Mediterranean weight loss program, it’s essential to produce a calorie deficit so as to drop a few pounds.
The identical holds true in case you’re making an attempt to achieve weight. With the intention to do that, you’ll have to calculate your present calorie wants after which determine how a lot so as to add to create the calorie surplus wanted for weight acquire (10).
Choosing the proper calorie stage on your purpose is vital to creating CICO give you the results you want. When you’re making an attempt to drop a few pounds, it’s possible you’ll be tempted to set a really low-calorie purpose, however this isn’t suggested. Going too low can put your physique in starvation mode, which is able to stall weight reduction (11). After all, weight administration is extra sophisticated than the CICO technique implies, but it surely’s a useful software nonetheless (7).
Knowledgeable Opinions

Specialists at MyFitnessPal have some strategies that can assist you take advantage of out of the CICO technique as a way to attain your targets. Stephanie Nelson, RD, MyFitnessPal’s Lead Scientist, has a cautionary story that’s value repeating: Don’t set your calorie goals too low.
“The extra you restrict your calorie consumption, the tougher your journey turns into and the extra possible you’re to give up earlier than your purpose. MyFitnessPal knowledge exhibits that customers with the minimal each day calorie purpose give up their weight reduction journeys ahead of these with extra beneficiant each day calorie targets,” she explains.
Nelson says it’s extra sustainable to take a slower method to weight reduction as a result of you find yourself making modifications which you could sustain for the long run.
“Slightly than focusing solely on numbers, deal with smaller habits modifications you may make,” she provides. Some examples of small modifications might contain including extra veggies to your dinner or consuming extra protein at breakfast.

In the meantime, Melissa Jaeger, RD, LD, MyFitnessPal Head of Vitamin, gives this reminder: “Whereas the CICO technique is easy in idea, it isn’t the entire image of how protected and sustainable weight reduction happens.”
For wholesome weight reduction, it’s additionally essential to contemplate the standard of your weight loss program as some meals are extra filling whereas others, reminiscent of closely processed meals, are simpler to overeat. Jaeger says that 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.
That is the place MyFitnessPal might help as a result of you’ll be able to see each the energy—and the nutrient breakdown of these energy. That info might help empower you to make extra nourishing selections over time.
CICO Well being Advantages
A significant good thing about the CICO weight loss program is how easy and versatile it’s. There’s no listing of forbidden meals or an in depth variety of guidelines to observe. You’re much less more likely to really feel overwhelmed by a whole weight loss program overhaul.
As a substitute, the CICO technique lets you make gradual modifications to your weight loss program whereas prompting you to remain inside your calorie wants, whether or not that’s for weight reduction, acquire, or upkeep (10).
If the CICO weight loss program helps you attain a more healthy weight, you’ll be able to count on the well being perks that come together with that.
Listed here are a few of these research-backed advantages (12):
- Dropping a small quantity of weight—simply 5%—has been related to higher glucose management and triglyceride ranges.
- For each 2.2 kilos of weight reduction amongst individuals who had glucose intolerance—placing them liable to diabetes—there was a 16% decrease danger of progressing to kind 2 diabetes.
- Modest weight reduction can result in enhancements in blood strain and HDL levels of cholesterol. These enhancements translate to a decrease danger of coronary heart illness.
- Enhancements in knee perform and ache amongst these with osteoarthritis
- A discount of fats within the liver
- Higher ovulatory perform and probability of being pregnant amongst ladies with PCOS.
Potential Dangers & Drawbacks
One downside to the CICO technique is the temptation to drastically minimize your energy to advertise sooner weight reduction (11). This will truly backfire as a result of your physique will suppose it’s ravenous, so your metabolism could decelerate, stalling weight reduction. It will probably additionally result in different unhealthy penalties, like a discount in coronary heart muscle measurement, weakened bones, and impaired immune perform (11).

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Why Severe Calorie Deficits Aren’t Always Good For Weight Loss
Additionally, since calorie counting is the essence of the CICO technique, it’s possible you’ll ignore the standard of the meals you eat. And in case your weight loss program is excessive in unhealthy meals and low in nutrient-dense meals, it’s possible you’ll be liable to lacking the vitamins you want and well being issues stemming from an unhealthy weight loss program (13).
After all, there’s additionally the truth that weight administration is extra sophisticated than energy in, energy out. Your physique could be very advanced, and the CICO technique ignores different elements, like age, genetics, and hormones, that come into play (7).
Calorie monitoring will also be dangerous for sure individuals. Pregnant and breastfeeding ladies are amongst people who ought to keep away from the CICO weight loss program for weight reduction until suggested by a healthcare skilled (15, 16, 17).
Find out how to Do the CICO Food regimen
If you wish to observe the CICO weight loss program, you’ll have to discover ways to observe energy. Listed here are some suggestions.
Utilizing meals journals and apps
MyFitnessPal is a simple method to observe energy and vitamin. You too can observe your water consumption and sync your sleep knowledge with MyFitnessPal, permitting you to learn the way meals impacts your sleep high quality and the way your sleep impacts your urge for food and meals decisions.
The app makes it straightforward to enter meals you eat on repeat (be taught concerning the latest Voice Log function!). After all, you should utilize a easy notepad or spreadsheet to log your meals and observe energy and weight, however that is rather more cumbersome than an app.
Calculate caloric wants
To get began with calorie monitoring, you’ll first have to calculate your caloric wants (18). You should use a Basal Metabolic Rate Calculator to estimate your BMR after which think about your exercise stage from there.
As soon as you identify your caloric wants and targets, you should utilize MyFitnessPal to trace your calorie consumption. You may set vitamin and health targets and observe your progress, and you can too check out your calorie consumption by day and by week.
Monitoring is a necessary step in assembly your targets, and the way incessantly you employ the app could also be associated to your success. A 2019 examine discovered that after individuals bought the dangle of it, monitoring took simply quarter-hour a day, and that those that recorded their consumption no less than twice a day had larger weight reduction success than those that weren’t as constant (2).
Find out how to Create a Caloric Deficit for Weight Loss
Listed here are the fundamentals of utilizing CICO for weight reduction:
- Give attention to small, manageable modifications, like swapping soda for water.
- When deciding the quantity of calorie deficit you’re aiming for, take your exercise stage into consideration (8, 20).
- Select nutritious and satisfying meals like non-starchy greens and lean protein (3, 18).
- Measure portion sizes, particularly high-calorie meals like nuts and cheese (19).
- Observe what you eat and the energy you eat (you should utilize an app like MyFitnessPal to assist along with your monitoring)
Don’t Robotically Eat All Your Workouts Energy
One of many greatest errors I see amongst individuals on a weight reduction journey is consuming again train energy.
Whereas useful, common train doesn’t burn fairly as many energy as you—or your wearables—might imagine. Plus, train could make you hungrier, so it’s possible you’ll naturally be consuming a little bit extra on days you’re employed out with out realizing it (21).
Then, in case you additionally determine to make use of train as a motive to splurge or select to attempt to eat again all of the energy you burned, it’s possible you’ll wind up consuming greater than your calorie wants for weight reduction and stall your progress.

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Sustaining Power Steadiness for Weight Upkeep
In case your purpose is to keep up your weight, you’ll have to match your calorie consumption to the energy you burn every day (10).
Discovering Your Upkeep Degree
Whether or not you’ve simply misplaced weight or try to keep up your weight as you undergo life, you should utilize the CICO weight loss program and a calorie monitoring app like MyFitnessPal to assist. Weight upkeep boils right down to consuming the identical quantity of energy as you spend, however since this can be a simplistic formulation, it could take a little bit trial and error (10).
One nice function of MyFitnessPal is the power to trace your weight alongside along with your weight loss program and calorie consumption. That offers you a way of your weight developments, so you’ll be able to decide the proper stage of energy wanted for weight upkeep.
In upkeep, use your starvation and fullness cues to eat meals in quantities that match your urge for food. Proceed to trace your energy and do your greatest to remain inside your wants, however don’t override your physique’s indicators.
It helps to decide on fiber- and protein-rich meals, which do a greater job of controlling starvation whereas managing calorie consumption (3).

The significance of continued counting energy throughout upkeep
Research counsel that as much as 80% of people that drop a few pounds go on to regain it inside a 5 12 months interval (22). That makes counting energy throughout weight upkeep a vital a part of maintaining weight off.
When you’ve misplaced weight, you’ll want fewer energy to keep up your smaller physique measurement than you probably did to keep up a bigger physique weight. Retaining observe of what and the way a lot you’re consuming might help you keep the vitality stability wanted for weight upkeep.
Frequent meals monitoring and weighing your self have been tied to weight upkeep success (22).
CICO for Completely different Diets and Life
The CICO mannequin might be useful it doesn’t matter what kind of weight loss program you’re following. Listed here are some methods the CICO weight loss program might help you on varied diets (11).
CICO and Low-Carb Diets
The truth is {that a} calorie deficit is the spine of weight reduction, so calorie monitoring might help you identify whether or not you’re reaching that deficit no matter weight loss program you observe, together with low-carb or keto weight loss program (11).
Plus, you should utilize the macro calculator to set your macro targets for low-carb weight loss program, after which observe your consumption to ensure your calorie and carb consumption suits your targets.
CICO for Vegetarians and Vegans
Some plant-based meals like greens and fruits are decrease in energy however larger in quantity and fiber, so you’ll be able to eat satisfying parts with out overdoing calorie ranges (19). Nonetheless, others, reminiscent of nuts, seeds, avocados, and heart-healthy oils, are calorie-dense.
It’s essential to concentrate to your portion sizes so as to keep your vitality stability (19). That is the place the CICO weight loss program can turn out to be useful, serving to you handle your calorie consumption on a plant-based consuming sample (11).
CICO for Athletes
Athletes are likely to have larger calorie wants than the common individual as a result of their excessive ranges of bodily exercise and elevated muscle mass. When you’re an athlete, following the CICO weight loss program might help make sure that you’re assembly your calorie wants. Below fueling and over fueling can each harm your efficiency (23).

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Instance Meal Plan
Right here’s what a pattern day might appear to be on a 1,600 calorie balanced weight loss program.
- Breakfast: Two entire grain toaster waffles topped with ½ cup plain Greek yogurt, ½ cup frozen berries (heated) , 2 tablespoons chopped nuts, and 1 teaspoon maple syrup.
- Lunch: Cobb salad made with 2 cups child spinach, ¼ cup chopped cherry tomatoes, ¼ avocado, diced, 1 sliced exhausting boiled egg, 3 ounces rotisserie rooster, shredded or cubed, and a pair of tablespoons feta cheese. Toss with a dressing comprised of 1 ½ teaspoons of each additional virgin olive oil and Dijon mustard, and lemon juice, salt, and pepper to style.
- Snack: Smoothie comprised of a mix of 1 cup unsweetened vanilla almond milk, ¼ avocado, ½ frozen banana, and 1 cup child spinach.
- Dinner: 6 ounces of broiled or grilled salmon, 1 cup of roasted broccoli, and ½ cup brown rice.
- Snack: 1 ounce of darkish chocolate
Success Tales & Testimonials
As a younger grownup, Kaylin Gealy had simply graduated faculty and began a desk job, going from pretty lively to principally sedentary. When she was youthful, she described with the ability to eat no matter she wished, however she quickly discovered her weight fluctuating between 218 and 224 kilos.
To get again on observe, Gealy started walking and using MyFitnessPal to follow higher consuming habits.
“I noticed the calorie-in/calorie-out weight-loss resolution, and it was so useful,” says Gealy. “It requested me how lively I used to be and helped me set targets. I might scan bar codes, observe my train and weight reduction, and regulate my macros to determine what labored greatest. It was the whole lot I wanted in a single spot.”

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Widespread Challenges and Find out how to Overcome Them
One widespread problem with the CICO weight loss program is barely contemplating energy in vs. energy out somewhat than contemplating different elements concerned in weight administration, like starvation and fullness, meal timing, sleep patterns, and stress ranges (1).
Whereas the vitality stability equation is the spine of the CICO weight loss program, weight administration is extra sophisticated, so it’s useful to take these different doable pitfalls (1).
- Consuming the improper meals. Fill your plate with lean proteins, greens and fruits, wholesome starches, and heart-healthy fat. These meals are more healthy and extra filling than ultra-processed meals (19).
- Consuming simply because you might have energy left over, whether or not you’re hungry or not. As a substitute, cease consuming while you’re not hungry (24).
- Consuming as few energy as doable. As a substitute, construct wholesome habits which you could maintain, which often occurs while you take issues slowly (11).
Continuously Requested Questions (FAQs)
Does the CICO weight loss program work?
The CICO weight loss program is an efficient method to weight reduction. It encourages monitoring your meals consumption and monitoring energy. Analysis means that this type of frequent self-monitoring can promote profitable weight reduction (3).
Must you attempt the CICO weight loss program?
Many individuals will profit from making an attempt the CICO weight loss program, and it may be mixed with varied consuming patterns, so you may make it give you the results you want (18). Nonetheless, in case you’re pregnant, nursing, or produce other well being considerations, you need to keep away from the CICO weight loss program ( 15, 16, 17).
What are you able to eat on CICO?
What you eat on the CICO weight loss program is as much as you. The CICO weight loss program is versatile, so you’ll be able to observe the consuming sample that works for you. It’s healthiest to eat entire or much less processed meals and to emphasise plant meals, regardless of which consuming sample you observe (3).
Is calorie counting efficient for losing a few pounds?
Calorie counting is an efficient software for losing a few pounds (18). Analysis means that calorie counting, logging your meals consumption, and different self-monitoring behaviors, reminiscent of logging your weight and train, are related to profitable weight reduction (2).
What are some suggestions for CICO novices?
The vitality stability equation behind the CICO weight loss program might not be precisely correct, so there could also be some trial and error as you start following the CICO weight loss program. Give attention to consuming a balanced, nutritious weight loss program, log your meals as you go, and attempt to keep inside your calorie limits (2, 3). It’s additionally a good suggestion to tune into your starvation and fullness, and to cease consuming while you’re not hungry as an alternative of while you’ve used up your entire energy for the day (24).
Find out how to Use MyFitnessPal for CICO
It’s straightforward to make use of MyFitnessPal to follow the CICO diet. Merely log your meals consumption after every meal and snack, and you’ll see your calorie and vitamin consumption for the day and week. You too can save the meals you usually eat, saving you time every time you add them to your log.
Different useful options embody train monitoring and weight monitoring. These instruments make it easy to make use of MyFitnessPal for the CICO weight loss program.
The Backside Line
CICO is a versatile weight loss program method to weight administration based mostly on the precept of vitality stability: consuming fewer energy than you burn results in weight reduction, whereas consuming extra results in weight acquire (1). To observe the CICO weight loss program, monitoring your caloric consumption is vital, and instruments like MyFitnessPal might help make monitoring simpler and extra correct (2).
However bear in mind, sustainable weight administration isn’t simply concerning the energy in vs. energy out—nourishing your physique with entire, nutrient-rich meals and staying in line with each weight loss program and train will help your long-term well being and wellness (5).
The put up What Is The CICO Diet? The Simplest Approach To Weight Loss Explained appeared first on MyFitnessPal Blog.