The "quality" of calories consumed is also important. There are different classifications of foods in terms of calories. This includes high-calorie foods, low-calorie foods, and empty calories. Consistent with their naming, high-calorie foods are foods that are calorically dense, meaning that there are a high number of calories relative to serving size, while low-calorie foods have fewer calories relative to serving size.
Foods such as fat, oils, fried foods, and sugary foods are examples of high-calorie foods. Being a high-calorie food does not inherently mean that the food is unhealthy however — avocados, quinoa, nuts, and whole grains are all high-calorie foods that are considered healthful in moderation.
Low-calorie foods include vegetables and certain fruits, among other things, while empty calories, such as those in added sugars and solid fats, are calories that contain few to no nutrients. Studies have shown that there is a measurable difference between consuming calories of carrots compared to calories of popcorn. As previously mentioned, this in part can be attributed to differences in how the foods are consumed and processed. Carrots require far more chewing and can result in more calories burned during digestion.
Again, the mechanism for these differences is not fully defined, but simply note that for weight loss purposes, the general formula of calories in minus calories out determining weight gain or loss does hold, but that the number of calories on a nutrition label is not necessarily indicative of how many calories the body actually retains. While there is no clear-cut or ideal amount of macronutrient proportions a person should consume to maintain a healthy diet or lose weight, eating a "healthy" diet replete with a variety of unprocessed foods such as vegetables, fruits, and lean meats is correlated with being healthier, and is more likely to result in sustainable weight loss.
Many of these calories fall under the category of empty calories. While sodas are an obvious culprit, drinks such as juices and even milk have large amounts of sugar and should be consumed in moderation to avoid negating their nutritional benefits. Ideally, a person should drink water, tea, and coffee without adding sugar in order to reduce calories gained from drinks.
Remember: All foods, including "healthful foods," should be consumed in moderation, and distinctions can often be misleading since even natural foods like fruits can have large amounts of sugar, and foods labeled as "health foods" such as low-calorie foods, reduced-fat foods, etc. Many reduced-fat foods have large amounts of added sugar to compensate for taste lost through fat reduction. It is important to pay attention to, and consider the different components in a food product in order to determine whether said food should have a place within your diet.
US units metric units other units. Results unit:. Calories Kilojoules. BMR estimation formula:. Mifflin St Jeor. Revised Harris-Benedict. Katch-McArdle Body Fat:. W is body weight in kg H is body height in cm A is age F is body fat in percentage. Fitness and Health Calculators. Financial Fitness and Health Math Other. Calorie [Nutritional, kcal] calorie [cal] Kilojoules [kJ] joules [J].
This content does not have an Arabic version. See more conditions. Javascript is required in order to use this web app. Calorie Calculator. Switch to Metric Units Age years Height ft. Or someone who is tall, muscular, and exercises a lot?
Try not to lower your calorie intake by more than calories below maintenance. Doing so may invoke the bodies starvation response, which can lead to the Yo-yo dieting effect. Try to gradually lower calories.
A sudden drop such as calories or more can cause your metabolism to slow. Learn to eat slowly — research shows that faster eaters are heavier people 1. You are completely set-up for a regain in fat if you suddenly return to your previous eating patterns.
As your exercise level was already factored into the equation, there is NO NEED to subtract calories burned by exercise. For you this could mean a brisk walk, for others it could be a slow jog.
It could be a session of weight-bearing exercises. Intense exercise can be defined as an hour of elevated heart rate however intense workouts such as a series of body weight exercises or heavy weights with little or no breaks are considered intense even when only a shorter duration.
Estimating your exercise can be very arbitrary. If in doubt — underestimate. We all tend to overestimate how much exercise we do. Have a play with our calories burned tool to see how different exercises compare.
You can lose weight without exercise, but do aim to include exercise in your lifestyle change: it maintains muscle when under calorie deficit, and is great for your heart and mental state. Most people lose muscle mass when restricting calories. Spoil yourself occasionally with a favorite treat, but in smaller amounts. Get enough sleep : Sleep loss affects the metabolism, and it has been linked to weight gain.
Avoid eating 2 hours before bed : Eating within 2 hours of sleeping can interfere with sleep quality and promote weight gain. Here are some examples of activities and the calories they can help you burn in 30 minutes. The estimates are for a person weighing pounds. Keeping calorie intake within certain limits will not ensure a healthful diet, as different foods have different effects on the body.
After consuming carbohydrates carbs , insulin levels will rise significantly more compared with eating fats or protein. Some carbs in particular get into the bloodstream in the form of sugar, or glucose, much faster than others.
Refined flour is a fast carb, while legumes are slower. Slow-release carbs are better for body weight control and overall health than fast carbs. A calorie meal of fish or meat, salad, and some olive oil, followed by fruit, is more healthful and will stave off hunger for longer than a calorie snack of popcorn with butter or toffee.
To work out how many calories you need, you need to know your basal metabolic rate and an activity factor. To calculate your BMR automatically, follow this link and enter your details into the calculator. This will give a rough idea of the daily calorie intake you need to keep your body weight where it is. The result is still not perfect, as the equation does not take into account the ratio of muscle to fat.
A very muscular person needs more calories, even when resting. As with calories requirements, an ideal body weight depends on several factors, including age, sex, bone density, muscle-fat ratio, and height. Body mass index BMI is one way of working out what a person should weigh.
If you know your height and weight, you can use this calculator to find out your BMI. Imagine a top athlete who weighs pounds, or 91 kilograms kg and is 6 feet, or 1 metre m and 83 centimeters cm tall. They may have the same BMI as an inactive person of the same height. The athlete is not overweight, but the inactive person quite possibly is.
Researchers have found that many people whose waist circumference is less than half their height have a longer life expectancy. People with a smaller waist to height size have been found to have a lower risk of diabetes , cardiovascular disease, stroke , and other health conditions that are related to obesity.
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