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A calorie deficit is when you consume fewer calories than your body needs. It’s a great way to lose weight and keep it off for good. Achieving one, though, can be difficult sometimes. If you’re not sure exactly what a calorie deficit is, how to create one, or if it’s even the right path for you, then this article will be incredibly helpful.
First off, let’s talk about what a calorie is. The energy needed for our bodies daily functions comes from three sources: carbohydrates, proteins, and fats. These nutrients are converted into ATP (adenosine triphosphate), which provides energy for all cell processes in our body (8):
It takes more fatty acids than any other nutrient to produce one calorie (kcal). Although carbs and proteins provide less than half the kcals per gram, they are still important in our diets for maintaining our body tissues.
The body will use up all three types of nutrients if you give it more than it needs for maintaining your current weight. However, you can control calorie intake by shifting the proportion of these nutrients. If you want to lose weight, eat fewer calories than your body needs. To gain weight, eat more calories than your body needs.
Read More: 1200-Calorie Deficit: Is It A Safe Way To Lose Weight?
When you provide fewer calories than needed for calorie expenditure, you create a calorie deficit. You may have heard that weight loss occurs when the number of calories burned is greater than the number of calories consumed (4). While this is true, it doesn’t explain everything about weight loss.
Your body requires a certain amount of energy every day to function. That’s why the amount of calories you eat in a day varies depending on your weight and activity level. A person who weighs 150 pounds who spends most of their day sitting at a desk, for example, will require fewer daily calories than someone who weighs 300 pounds and is constantly on the move.
The body expends energy through three different types of activities (1):
It’s important to realize that these activities make up your total daily calorie expenditure, but they aren’t the only factors that go into how much you should eat each day. Exercise and other physical activities play a key role also.
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If you want to lose weight, knowing your calorie needs is important because it’s the first step in creating a calorie deficit that will lead to weight loss.
To calculate your calorie needs, you’ll need to estimate how many calories you expend every day by multiplying your weight by a factor that corresponds with your level of activity: Weight x Factor = Calorie Needs for Maintenance
Once you know how many calories your body needs to maintain its current weight, you can then estimate how much you need to reduce your calorie intake to lose weight. A pound of fat contains 3500 calories (6). So if you want to lose one pound per week, you’ll need to create a 500-calorie daily deficit through diet or physical activity.
For example, let’s say that you are a 160-pound woman who exercises lightly (factor of 13) four days per week and weighs 140 pounds. Your calorie need for maintenance is 2260 calories per day. If you want to lose about one pound each week, your calorie deficit would be 260 calories per day.
Read More: Calorie Deficit Meals: The Ultimate Guide For Eating Less To Lose Weight
There are many ways to get a calorie deficit, from limiting your food intake to increasing your activity level through exercise and other physical activities.
If you want to reduce the number of calories in 1 or 2 meals of the day, try these strategies:
If you want to reduce the number of calories you eat throughout the entire day, try these strategies:
If you want to increase your calorie expenditure through physical activity, try these strategies:
You may not see immediate weight loss if you make changes like these to your diet or lifestyle, but if you stay consistent and keep your calorie deficit at about 500 calories per day, you’ll start to lose weight within a few weeks (6).
Here are some simple ways that will help you start making your own calorie deficit:
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Eating too few calories can put you at risk for a variety of health issues. If you eat fewer than 1200 calories per day, it will be difficult to get the vitamins, minerals, and nutrients that your body needs to function normally (3). If you try to eat this little regularly, there’s a good chance that you’ll experience some negative side effects, such as:
Your body is constantly shedding small amounts of tissue as part of its normal daily activities. If your calorie intake is so low that it causes frequent overeating or binging episodes – or if you adopt an overly restrictive diet or severely limit one particular food group – your body won’t have enough energy left over to replace the cells being lost. As a result, you may be more susceptible to infections or diseases and have a hard time fighting off existing infections (2).
To maintain your weight, the number of calories you burn each day should stay about the same, even if you start exercising more often. If the number of calories you burn per day goes down, it could signal that your metabolism has slowed down to adjust to your lowered calorie intake. This isn’t good because it means that every time you reduce the amount of food you’re eating, your body will try to conserve energy by burning fewer calories too.
If you’re not getting enough food, your body may have less energy to go about all of its daily functions. This could make you feel tired and worn out throughout the day, which will make it tougher for you to stick with a challenging workout routine or a healthy diet (2).
If you lose weight too quickly, by eating too few calories, there’s a chance that you’ll develop gallstones. Usually, gallstones form when the concentration of bile in the gallbladder increases because one of the substances that make up bile, cholesterol, is present at very high levels compared to other components of bile. This usually happens as a result of rapid weight loss from extreme calorie restriction or excessive amounts of exercise (5).
Calorie deficits do work, but they’re not always easy to maintain long-term. It sounds simple in theory: consume fewer calories than you burn, and you’ll lose weight. But the reality is much more complicated than that. For one thing, most people’s bodies respond to periods of calorie restriction with a protective mechanism that makes it hard for them to keep the weight off.
People who are very active or athletes will likely require more calories than someone whose job is mostly sedentary. People who are obese or overweight may need even fewer calories than average to start losing weight. However, if this number is too low, there could be harmful effects on your health and wellness!
If you want to reduce your calorie intake to lose weight, the most important thing is to make sure you don’t go too low. Eating fewer than 1200 calories per day can lead to symptoms like fatigue and lethargy, which could prevent you from working out as much as is necessary for successful weight loss. Eating less than this amount regularly may also cause your metabolism to slow down – making it even harder for you to lose weight and keep it off!
This article is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional advice or help and should not be relied on to make decisions of any kind. Any action you take upon the information presented in this article is strictly at your own risk and responsibility!