The National Institutes of Health Body Weight Planner allows you to calculate your personal needs based on your height, sex, age, current weight and activity level — ranging from 1. The tool is set for a default value of 1. For example, for an individual with a desk job who either takes walks or goes for a bicycle ride once a week. The MyPlate website also has an easy online tool for figuring out how many calories you need.
How does it work? You can also learn about the amounts that are recommended from each food group to help you meet your healthy eating goals:. Some people have trouble maintaining a healthy weight. And, not all weight changes are related to how much you are eating or drinking. The Harris-Benedict Equation was one of the earliest equations used to calculate basal metabolic rate BMR , which is the amount of energy expended per day at rest.
It was revised in to be more accurate and was used up until , when the Mifflin-St Jeor Equation was introduced. Of these equations, the Mifflin-St Jeor Equation is considered the most accurate equation for calculating BMR with the exception that the Katch-McArdle Formula can be more accurate for people who are leaner and know their body fat percentage.
The three equations used by the calculator are listed below:. The value obtained from these equations is the estimated number of calories a person can consume in a day to maintain their body-weight, assuming they remain at rest. This value is multiplied by an activity factor generally 1. As such, in order to lose 1 pound per week, it is recommended that calories be shaved off the estimate of calories necessary for weight maintenance per day.
For example, if a person has an estimated allotment of 2, calories per day to maintain body-weight, consuming 2, calories per day for one week would theoretically result in 3, calories or 1 pound lost during the period.
It is important to remember that proper diet and exercise is largely accepted as the best way to lose weight.
It is inadvisable to lower calorie intake by more than 1, calories per day, as losing more than 2 pounds per week can be unhealthy, and can result in the opposite effect in the near future by reducing metabolism.
Losing more than 2 pounds a week will likely involve muscle loss, which in turn lowers BMR, since more muscle mass results in higher BMR. Excessive weight loss can also be due to dehydration, which is unhealthy.
Furthermore, particularly when exercising in conjunction with dieting, maintaining a good diet is important, since the body needs to be able to support its metabolic processes and replenish itself.
Depriving the body of the nutrients it requires as part of heavily unhealthy diets can have serious detrimental effects, and weight lost in this manner has been shown in some studies to be unsustainable, since the weight is often regained in the form of fat putting the participant in a worse state than when beginning the diet. As such, in addition to monitoring calorie intake, it is important to maintain levels of fiber intake as well as other nutritional necessities to balance the needs of the body.
Calorie counting with the intent of losing weight, on its simplest levels, can be broken down into a few general steps:. The above steps are an attempt at the most basic form of calorie counting. Calorie counting is not an exact science, and can be as complex as you want to make it. The above does not consider the proportions of macronutrients consumed.
While there is no exactly known, ideal proportion of macronutrients fats, proteins, carbohydrates , some balance is certainly advisable, and different foods have been found to have different effects on health, feelings of hunger, and number of calories burned.
Generally, minimally processed plant and animal foods tend to be more conducive to healthy weight loss and maintenance. There are many approaches to weight loss and there is no set ideal method that works for all people, which is why so many different diets and exercise regimens exist.
While some methods are more effective for each individual person, not all weight loss methods are equivalent, and studies suggest that some approaches are healthier than others.
That being said, one of the most commonly effective weight loss methods is counting calories. In its most basic form, calories consumed minus calories expended will result in weight gain if the result is positive, or weight loss if the result is negative. However, this is far from a comprehensive picture, and many other factors play a role in affecting healthy, sustainable weight loss.
For example, there exist conflicting studies addressing whether or not the type of calories or foods consumed, or how they are consumed, affects weight loss. Studies have shown that foods that require a person to chew more and are more difficult to digest result in the body burning more calories, sometimes referred to as the thermic effect of food.
While the increase in burned calories may be marginal, foods that are more difficult to digest such as vegetables generally tend to be healthier and provide more nutrients for fewer calories than many processed foods.
Therefore, make sure to seek professional help before getting started. AskApollo online Health Information Library is an initiative by Apollo Hospitals for general people, patients, their families and friends who seek useful health information, tips and advice on disease, procedure and certain medications to help you take care of yourself and your loved ones.
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Pseudobulbar Affect — Causes, Symptoms and Treatment. Prolactinoma — Symptoms, Causes and Treatment. Three things you should remember this pandemic still. June 12, What are Calories? How many calories should you eat on average? You will find this written as kcal on food packets. Kilojoules kJ are the equivalent of kilocalories within the International System of Units, and you'll see both kJ and kcal on nutrition labels. To find out if you are a healthy weight, use the BMI calculator.
To maintain a healthy weight, you need to balance the amount of calories you consume through food and drink with the amount of calories you burn through physical activity.
To lose weight in a healthy way, you need to use more energy than you consume by eating a healthy, balanced diet with fewer calories while increasing your physical activity. For more information on weight loss, download the NHS weight loss plan , our free 12 week diet and exercise plan.
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