Energy In, Energy Out—aka, “CICO”—is a buzzword wherever individuals discuss their weight reduction journeys nowadays.
However in contrast to another stylish diets, CICO is nothing new. It’s a standard method to weight administration that comes right down to this: Should you eat fewer energy than you burn, you’ll drop extra pounds (1).
Energy are the unit of power your physique makes use of for gas. The CICO technique hinges, partly, 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 extra pounds (1).
CICO is simple to apply (particularly with a calorie monitoring instrument 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-reduction plan works and find out how to make it give you the results you want.
What’s CICO? (Energy In, Energy Out)
The CICO weight-reduction plan is brief for energy in, energy out, and it’s a easy idea based mostly on the precept of power stability.
The concept is that in case you eat fewer energy (energy in) than your physique burns (energy out), you’ll drop extra pounds.
On the flip facet, in case you eat extra energy than you burn, you’ll achieve weight. And in case you match the energy you absorb 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, akin to keto or paleo. As an alternative, it emphasizes calorie monitoring (1).
We’ll undergo find out how to decide your caloric wants and get the very best 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 every part you eat and drink—and caloric expenditure, or energy out. These are the energy your physique makes use of to gas every part from respiration to operating a marathon (1).
Day-after-day, your physique burns energy simply to remain alive. Your basal metabolic charge (BMR) is the variety of energy your physique makes use of to carry out these every day features (1). (You’ll discover ways to calculate this under.)
The quantity of muscle you have got performs a task in your metabolism as a result of muscle tissue is metabolically energetic—it burns energy at relaxation (6).
One other consider your metabolism is your physique dimension. Bigger our bodies require extra energy to take care of their dimension, which suggests additionally they burn extra energy (6). As you drop extra 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 on occasion if you wish to keep a calorie deficit (7).
Outdoors of your BMR, extra 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 essentially the most management over (6).
Calculating basal metabolic charge (BMR)
A key step in utilizing CICO is calculating your basal metabolic charge (BMR), which tells you what number of energy your physique wants to remain alive (6). Figuring out your BMR helps you identify your every day caloric wants and provides you a baseline for monitoring your consumption and setting objectives (8).
You should utilize MyFitnessPal BMR Calculator to simply calculate your BMR. This calculator is predicated on the Mifflin – St. Jeor equations and it takes your age, top, weight, and gender to supply an estimate of what number of energy your physique burns at relaxation.
As soon as you recognize your BMR, you possibly can add the energy you sometimes burn in your every day actions to seek out your complete every day power 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 crucial a part of weight reduction success (9).
As an example, a 2017 research inspired a small group of members to maintain meals and train diaries whereas additionally guiding them to make wholesome meals decisions. Members had been additionally instructed to weigh themselves not less than weekly (9).
What the researchers discovered is that individuals who tracked extra religiously had 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 season however gained it over the vacations (9).
This research means that utilizing instruments like MyFitnessPal for calorie monitoring, protecting a weight log, and assessing your weight-reduction plan high quality might be very useful.
By logging what you eat and drink, you achieve consciousness of your consuming patterns and may higher management portion sizes and meals decisions. Plus, this degree of accountability helps keep consistency, which is essential for long-term success.
Why CICO Issues for Weight Administration
Understanding CICO is essential for weight administration, it doesn’t matter what weight-reduction plan you select (10). Whether or not you’re following a vegan weight-reduction plan, a paleo weight-reduction plan, or a Mediterranean weight-reduction plan, it is advisable produce a calorie deficit with a view to drop extra pounds.
The identical holds true in case you’re attempting to achieve weight. With a purpose 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 achieve (10).
Choosing the proper calorie degree on your aim is essential to creating CICO give you the results you want. Should you’re attempting to drop extra pounds, you could be tempted to set a really low-calorie aim, however this isn’t suggested. Going too low can put your physique in hunger mode, which is able to stall weight reduction (11). After all, weight administration is extra difficult than the CICO technique implies, but it surely’s a useful instrument nonetheless (7).
Knowledgeable Opinions

Specialists at MyFitnessPal have some strategies that will help you take advantage of out of the CICO technique to be able to attain your objectives. Stephanie Nelson, RD, MyFitnessPal’s Lead Scientist, has a cautionary story that’s price repeating: Don’t set your calorie objectives too low.
“The extra you restrict your calorie consumption, the more durable your journey turns into and the extra seemingly you’re to stop earlier than your aim. MyFitnessPal information exhibits that customers with the minimal every day calorie aim stop their weight reduction journeys before these with extra beneficiant every 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 that you may sustain for the long run.
“Reasonably than focusing solely on numbers, deal with smaller habits modifications you may make,” she provides. Some examples of small modifications may contain including extra veggies to your dinner or consuming extra protein at breakfast.

In the meantime, Melissa Jaeger, RD, LD, MyFitnessPal Head of Diet, affords this reminder: “Whereas the CICO technique is straightforward in idea, it isn’t the entire image of how secure and sustainable weight reduction happens.”
For wholesome weight reduction, it’s additionally vital to contemplate the standard of your weight-reduction plan as some meals are extra filling whereas others, akin to 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 train us the significance of the vitamins in these energy.
That is the place MyFitnessPal may also help as a result of you possibly can see each the energy—and the nutrient breakdown of these energy. That info may also help empower you to make extra nourishing choices over time.
CICO Well being Advantages
A significant advantage of the CICO weight-reduction plan is how easy and versatile it’s. There’s no checklist of forbidden meals or an intensive variety of guidelines to observe. You’re much less prone to really feel overwhelmed by a whole weight-reduction plan overhaul.
As an alternative, the CICO technique permits you to make gradual modifications to your weight-reduction plan whereas prompting you to remain inside your calorie wants, whether or not that’s for weight reduction, achieve, or upkeep (10).
If the CICO weight-reduction plan helps you attain a more healthy weight, you possibly can count on the well being perks that come together with that.
Listed below 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 vulnerable to diabetes—there was a 16% decrease threat 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 threat 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 may really backfire as a result of your physique will suppose it’s ravenous, so your metabolism could decelerate, stalling weight reduction. It will possibly additionally result in different unhealthy penalties, like a discount in coronary heart muscle dimension, weakened bones, and impaired immune perform (11).

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Additionally, since calorie counting is the essence of the CICO technique, you could ignore the standard of the meals you eat. And in case your weight-reduction plan is excessive in unhealthy meals and low in nutrient-dense meals, you could be vulnerable to lacking the vitamins you want and well being issues stemming from an unhealthy weight-reduction plan (13).
After all, there’s additionally the truth that weight administration is extra difficult than energy in, energy out. Your physique may be very advanced, and the CICO technique ignores different components, 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-reduction plan for weight reduction except 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-reduction plan, you’ll have to discover ways to observe energy. Listed below are some suggestions.
Utilizing meals journals and apps
MyFitnessPal is a straightforward solution to observe energy and diet. You too can observe your water consumption and sync your sleep information with MyFitnessPal, permitting you to find out how 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 characteristic!). 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 utilize a Basal Metabolic Charge Calculator to estimate your BMR after which consider your exercise degree from there.
As soon as you identify your caloric wants and objectives, you should utilize MyFitnessPal to trace your calorie consumption. You may set diet and health objectives and observe your progress, and you can even check out your calorie consumption by day and by week.
Monitoring is a vital step in assembly your objectives, and the way incessantly you utilize the app could also be associated to your success. A 2019 research discovered that after members bought the hold of it, monitoring took simply quarter-hour a day, and that those that recorded their consumption not less than twice a day had higher weight reduction success than those that weren’t as constant (2).
Find out how to Create a Caloric Deficit for Weight Loss
Listed below 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 degree under 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 together with your monitoring)
Don’t Routinely Eat All Your Workout routines Energy
One of many largest 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 you could 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, you could wind up consuming greater than your calorie wants for weight reduction and stall your progress.

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Sustaining Vitality Steadiness for Weight Upkeep
In case your aim is to take care of your weight, you’ll have to match your calorie consumption to the energy you burn every day (10).
Discovering Your Upkeep Stage
Whether or not you’ve simply misplaced weight or are attempting to take care of your weight as you undergo life, you should utilize the CICO weight-reduction plan 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 components, it could possibly take a little bit trial and error (10).
One nice characteristic of MyFitnessPal is the power to trace your weight alongside together with your weight-reduction plan and calorie consumption. That offers you a way of your weight tendencies, so you possibly can decide the appropriate degree 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 extra pounds go on to regain it inside a 5 12 months interval (22). That makes counting energy throughout weight upkeep a crucial a part of protecting weight off.
Should you’ve misplaced weight, you’ll want fewer energy to take care of your smaller physique dimension than you probably did to take care of a bigger physique weight. Conserving observe of what and the way a lot you’re consuming may also help you keep the power stability wanted for weight upkeep.
Frequent meals monitoring and weighing your self have been tied to weight upkeep success (22).
CICO for Totally different Diets and Life
The CICO mannequin might be useful it doesn’t matter what kind of weight-reduction plan you’re following. Listed below are some methods the CICO weight-reduction plan may also help you on varied diets (11).
CICO and Low-Carb Diets
The fact is {that a} calorie deficit is the spine of weight reduction, so calorie monitoring may also help you identify whether or not you’re attaining that deficit no matter weight-reduction plan you observe, together with low-carb or keto weight-reduction plan (11).
Plus, you should utilize the macro calculator to set your macro objectives for low-carb weight-reduction plan, after which observe your consumption to ensure your calorie and carb consumption suits your objectives.
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 possibly can eat satisfying parts with out overdoing calorie ranges (19). Nonetheless, others, akin to nuts, seeds, avocados, and heart-healthy oils, are calorie-dense.
It’s vital to concentrate to your portion sizes with a view to keep your power stability (19). That is the place the CICO weight-reduction plan can come in useful, serving to you handle your calorie consumption on a plant-based consuming sample (11).
CICO for Athletes
Athletes are inclined to have larger calorie wants than the typical individual because of their excessive ranges of bodily exercise and elevated muscle mass. Should you’re an athlete, following the CICO weight-reduction plan may also help be certain that you’re assembly your calorie wants. Beneath fueling and over fueling can each harm your efficiency (23).

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Instance Meal Plan
Right here’s what a pattern day may seem like on a 1,600 calorie balanced weight-reduction plan.
- Breakfast: Two complete 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 hen, shredded or cubed, and a pair of tablespoons feta cheese. Toss with a dressing constructed from 1 ½ teaspoons of each further virgin olive oil and Dijon mustard, and lemon juice, salt, and pepper to style.
- Snack: Smoothie constructed from 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 energetic 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 began strolling and utilizing MyFitnessPal to apply higher consuming habits.
“I noticed the calorie-in/calorie-out weight-loss resolution, and it was so useful,” says Gealy. “It requested me how energetic I used to be and helped me set objectives. I may scan bar codes, observe my train and weight reduction, and modify my macros to determine what labored greatest. It was every part I wanted in a single spot.”

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Frequent Challenges and Find out how to Overcome Them
One frequent problem with the CICO weight-reduction plan is just contemplating energy in vs. energy out slightly than contemplating different components concerned in weight administration, like starvation and fullness, meal timing, sleep patterns, and stress ranges (1).
Whereas the power stability equation is the spine of the CICO weight-reduction plan, weight administration is extra difficult, so it’s useful to take these different doable pitfalls (1).
- Consuming the incorrect 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 have got energy left over, whether or not you’re hungry or not. As an alternative, cease consuming if you’re now not hungry (24).
- Consuming as few energy as doable. As an alternative, construct wholesome habits that you may maintain, which often occurs if you take issues slowly (11).
Ceaselessly Requested Questions (FAQs)
Does the CICO weight-reduction plan work?
The CICO weight-reduction plan 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).
Do you have to strive the CICO weight-reduction plan?
Many individuals will profit from attempting the CICO weight-reduction plan, 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 must keep away from the CICO weight-reduction plan ( 15, 16, 17).
What are you able to eat on CICO?
What you eat on the CICO weight-reduction plan is as much as you. The CICO weight-reduction plan is versatile, so you possibly can observe the consuming sample that works for you. It’s healthiest to eat complete or much less processed meals and to emphasise plant meals, irrespective of which consuming sample you observe (3).
Is calorie counting efficient for dropping pounds?
Calorie counting is an efficient instrument for dropping pounds (18). Analysis means that calorie counting, logging your meals consumption, and different self-monitoring behaviors, akin to logging your weight and train, are related to profitable weight reduction (2).
What are some suggestions for CICO newbies?
The power stability equation behind the CICO weight-reduction plan is probably not precisely correct, so there could also be some trial and error as you start following the CICO weight-reduction plan. Give attention to consuming a balanced, nutritious weight-reduction plan, 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 if you’re now not hungry as a substitute of if 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 observe the CICO weight-reduction plan. Merely log your meals consumption after every meal and snack, and you’ll see your calorie and diet 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-reduction plan.
The Backside Line
CICO is a versatile weight-reduction plan method to weight administration based mostly on the precept of power stability: consuming fewer energy than you burn results in weight reduction, whereas consuming extra results in weight achieve (1). To observe the CICO weight-reduction plan, monitoring your caloric consumption is crucial, and instruments like MyFitnessPal may also 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 complete, nutrient-rich meals and staying in step with each weight-reduction plan and train will help your long-term well being and wellness (5).
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