Energy In, Energy Out—aka, “CICO”—is a buzzword anyplace individuals discuss their weight reduction journeys today.
However in contrast to another fashionable diets, CICO is nothing new. It’s a conventional strategy to weight administration that comes all the way down to this: When you eat fewer energy than you burn, you’ll drop some weight (1).
Energy are the unit of vitality your physique makes use of for gas. The CICO methodology hinges, partially, on the concept having a 3,500 calorie deficit is the equal to dropping a pound. Theoretically, in the event you create a caloric deficit, you’ll drop some weight (1).
CICO is simple to follow (particularly with a calorie monitoring instrument like MyFitnessPal!) so it has gained momentum not too long ago by means of on-line communities and social media. Let’s do a deep dive into how the CICO weight loss program works and how you can 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 primarily based on the precept of vitality steadiness.
The thought is that in the event you eat fewer energy (energy in) than your physique burns (energy out), you’ll drop some weight.
On the flip facet, in the event you eat extra energy than you burn, you’ll achieve weight. And in the event you match the energy you absorb with the energy you burn, you’ll keep your present weight (1).
How It Works
CICO doesn’t prohibit particular meals or macronutrients like different diets, corresponding to keto or paleo. As an alternative, it emphasizes calorie monitoring (1).
We’ll undergo how you can decide your caloric wants and get the perfect outcomes with this weight administration methodology.
Understanding caloric consumption and expenditure
On the coronary heart of CICO is the steadiness between caloric consumption—AKA the energy you eat from all the pieces you eat and drink—and caloric expenditure, or energy out. These are the energy your physique makes use of to gas all the pieces from respiration to operating a marathon (1).
Day-after-day, your physique burns energy simply to remain alive. Your basal metabolic price (BMR) is the variety of energy your physique makes use of to carry out these day by day capabilities (1). (You’ll learn to calculate this under.)
The quantity of muscle you may have performs a task in your metabolism as a result of muscle tissue is metabolically lively—it burns energy at relaxation (6).
One other consider your metabolism is your physique dimension. Bigger our bodies require extra energy to keep up their dimension, which suggests in addition they burn extra energy (6). As you drop some weight, 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 every now and then if you wish to keep a calorie deficit (7).
Exterior of your BMR, further energy are burned by means 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 probably the most management over (6).
Calculating basal metabolic price (BMR)
A key step in utilizing CICO is calculating your basal metabolic price (BMR), which tells you what number of energy your physique wants to remain alive (6). Realizing your BMR helps you identify your day by day caloric wants and offers you a baseline for monitoring your consumption and setting objectives (8).
You should utilize 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 your BMR, you possibly can add the energy you sometimes burn in your day by day actions to search out your complete day by 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 methodology, and analysis suggests it’s additionally a vital a part of weight reduction success (9).
As an illustration, a 2017 examine inspired a small group of contributors to maintain meals and train diaries whereas additionally guiding them to make wholesome meals selections. Contributors had been additionally informed to weigh themselves at the least 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 time however gained it over the vacations (9).
This examine means that utilizing instruments like MyFitnessPal for calorie monitoring, holding a weight log, and assessing your weight loss program high quality may be very useful.
By logging what you eat and drink, you achieve consciousness of your consuming patterns and might higher management portion sizes and meals selections. Plus, this stage 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 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, you want to produce a calorie deficit so as to drop some weight.
The identical holds true in the event you’re attempting to realize weight. So as 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).
Selecting the best calorie stage in your purpose is essential to creating CICO give you the results you want. When you’re attempting to drop some weight, chances are 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 can stall weight reduction (11). In fact, weight administration is extra difficult than the CICO methodology implies, however it’s a useful instrument nonetheless (7).
Professional Opinions

Specialists at MyFitnessPal have some ideas that will help you take advantage of out of the CICO methodology so as to attain your objectives. 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 seemingly you’re to give up earlier than your purpose. MyFitnessPal knowledge exhibits that customers with the minimal day by day calorie purpose give up their weight reduction journeys before these with extra beneficiant day by day calorie targets,” she explains.
Nelson says it’s extra sustainable to take a slower strategy to weight reduction as a result of you find yourself making modifications you can sustain for the long run.
“Somewhat than focusing solely on numbers, deal with smaller conduct modifications you can also 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 methodology 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 vital to contemplate the standard of your weight loss program as some meals are extra filling whereas others, corresponding 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 will help as a result of you possibly can see each the energy—and the nutrient breakdown of these energy. That info will 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 record of forbidden meals or an in depth variety of guidelines to comply with. You’re much less prone to really feel overwhelmed by a whole weight loss program overhaul.
As an alternative, the CICO methodology permits you to 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, achieve, or upkeep (10).
If the CICO weight loss program 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):
- Shedding 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 prone to diabetes—there was a 16% decrease threat of progressing to kind 2 diabetes.
- Modest weight reduction can result in enhancements in blood stress and HDL levels of cholesterol. These enhancements translate to a decrease threat of coronary heart illness.
- Enhancements in knee operate and ache amongst these with osteoarthritis
- A discount of fats within the liver
- Higher ovulatory operate and probability of being pregnant amongst girls with PCOS.
Potential Dangers & Drawbacks
One downside to the CICO methodology is the temptation to drastically minimize your energy to advertise quicker weight reduction (11). This will really backfire as a result of your physique will assume it’s ravenous, so your metabolism might decelerate, stalling weight reduction. It may well additionally result in different unhealthy penalties, like a discount in coronary heart muscle dimension, weakened bones, and impaired immune operate (11).

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Additionally, since calorie counting is the essence of the CICO methodology, chances are 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, chances are you’ll be prone to lacking the vitamins you want and well being issues stemming from an unhealthy weight loss program (13).
In fact, 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 methodology 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 girls are amongst those who ought to keep away from the CICO weight loss program for weight reduction until suggested by a healthcare skilled (15, 16, 17).
The way to Do the CICO Weight loss plan
If you wish to comply with the CICO weight loss program, you’ll have to learn to observe energy. Listed below are some ideas.
Utilizing meals journals and apps
MyFitnessPal is a simple approach to observe energy and vitamin. It’s also possible to observe your water consumption and sync your sleep knowledge 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 selections.
The app makes it straightforward to enter meals you eat on repeat (be taught in regards to the latest Voice Log function!). In fact, you should use a easy notepad or spreadsheet to log your meals and observe energy and weight, however that is far 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 Rate Calculator to estimate your BMR after which consider your exercise stage from there.
As soon as you identify your caloric wants and objectives, you should use MyFitnessPal to trace your calorie consumption. You may set vitamin 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 often you utilize the app could also be associated to your success. A 2019 examine discovered that after contributors received the cling of it, monitoring took simply quarter-hour a day, and that those that recorded their consumption at the least twice a day had better weight reduction success than those that weren’t as constant (2).
The way to Create a Caloric Deficit for Weight Loss
Listed below are the fundamentals of utilizing CICO for weight reduction:
- Concentrate on 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).
- Monitor what you eat and the energy you eat (you should use an app like MyFitnessPal to assist together 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 chances are you’ll naturally be consuming somewhat extra on days you’re employed out with out realizing it (21).
Then, in the event you additionally determine to make use of train as a cause to splurge or select to attempt to eat again all of the energy you burned, chances are 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 are attempting to keep up your weight as you undergo life, you should use the CICO weight loss program and a calorie monitoring app like MyFitnessPal to assist. Weight upkeep boils all the way down to consuming the identical quantity of energy as you spend, however since it is a simplistic system, it may well take somewhat trial and error (10).
One nice function of MyFitnessPal is the flexibility to trace your weight alongside together with your weight loss program and calorie consumption. That gives you a way of your weight developments, so you possibly can decide the suitable 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 finest to remain inside your wants, however don’t override your physique’s alerts.
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 recommend that as much as 80% of people that drop some weight go on to regain it inside a 5 yr interval (22). That makes counting energy throughout weight upkeep a vital a part of holding weight off.
When you’ve misplaced weight, you’ll want fewer energy to keep up your smaller physique dimension than you probably did to keep up a bigger physique weight. Protecting observe of what and the way a lot you’re consuming will help you keep the vitality steadiness 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 Existence
The CICO mannequin may be useful it doesn’t matter what kind of weight loss program you’re following. Listed below are some methods the CICO weight loss program will help you on numerous diets (11).
CICO and Low-Carb Diets
The fact is {that a} calorie deficit is the spine of weight reduction, so calorie monitoring will help you identify whether or not you’re attaining that deficit no matter weight loss program you comply with, together with low-carb or keto weight loss program (11).
Plus, you should use the macro calculator to set your macro objectives for low-carb weight loss program, after which observe your consumption to verify your calorie and carb consumption matches your objectives.
CICO for Vegetarians and Vegans
Some plant-based meals like greens and fruits are decrease in energy however greater in quantity and fiber, so you possibly can eat satisfying parts with out overdoing calorie ranges (19). Nevertheless, others, corresponding to nuts, seeds, avocados, and heart-healthy oils, are calorie-dense.
It’s vital to concentrate to your portion sizes so as to keep your vitality steadiness (19). That is the place the CICO weight loss program 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 greater calorie wants than the typical individual attributable to their excessive ranges of bodily exercise and elevated muscle mass. When you’re an athlete, following the CICO weight loss program will help be sure that you’re assembly your calorie wants. Underneath 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 appear like 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 arduous boiled egg, 3 ounces rotisserie rooster, shredded or cubed, and a couple of tablespoons feta cheese. Toss with a dressing constructed from 1 ½ teaspoons of each additional 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 school and began a desk job, going from pretty lively to largely 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 objectives. I may scan bar codes, observe my train and weight reduction, and regulate my macros to determine what labored finest. It was all the pieces I wanted in a single spot.”

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Widespread Challenges and The way to Overcome Them
One frequent problem with the CICO weight loss program is simply contemplating energy in vs. energy out quite than contemplating different components concerned in weight administration, like starvation and fullness, meal timing, sleep patterns, and stress ranges (1).
Whereas the vitality steadiness equation is the spine of the CICO weight loss program, weight administration is extra difficult, so it’s useful to take these different attainable 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 may have energy left over, whether or not you’re hungry or not. As an alternative, cease consuming whenever you’re not hungry (24).
- Consuming as few energy as attainable. As an alternative, construct wholesome habits you can maintain, which normally occurs whenever you take issues slowly (11).
Continuously Requested Questions (FAQs)
Does the CICO weight loss program work?
The CICO weight loss program is an efficient strategy 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 strive the CICO weight loss program?
Many individuals will profit from attempting the CICO weight loss program, and it may be mixed with numerous consuming patterns, so you can also make it give you the results you want (18). Nevertheless, in the event 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 possibly can comply with 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 comply with (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, corresponding to logging your weight and train, are related to profitable weight reduction (2).
What are some ideas for CICO newbies?
The vitality steadiness equation behind the CICO weight loss program is probably not precisely correct, so there could also be some trial and error as you start following the CICO weight loss program. Concentrate on 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 whenever you’re not hungry as an alternative of whenever you’ve used up all your energy for the day (24).
The way 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. It’s also possible to save the meals you recurrently 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 strategy to weight administration primarily based on the precept of vitality steadiness: consuming fewer energy than you burn results in weight reduction, whereas consuming extra results in weight achieve (1). To comply with the CICO weight loss program, monitoring your caloric consumption is vital, and instruments like MyFitnessPal will help make monitoring simpler and extra correct (2).
However bear in mind, sustainable weight administration isn’t simply in regards to 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 assist your long-term well being and wellness (5).
The publish What Is The CICO Diet? The Simplest Approach To Weight Loss Explained appeared first on MyFitnessPal Blog.