How Much Should I Eat?

January is the most popular month to start a diet and exercise regime, as many resolve to get in shape in the coming year.
While it may be widely known that cutting calories is the key to weight loss, most of us don’t know how many calories we need in the first place.

scales, weight, health, fitness

Each of us has our own magic number: the number of calories our body needs just to exist. Even if you lay on the couch all day long, you need energy to keep your body functioning. That amount is called your basel metabolic rate, or BMR. This can be calculated using the Harris-Benedict equation for women:

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BMR= 655+ (4.35 x current weight in pounds) + (4.7 x height in inches) – (4.7 x age in years). By plugging in your height, weight and age, you will determine the total number of calories you need to exist. Next, multiply your BMR by your activity factor, as estimated below, to get the total number of calories needed per day.

Sedentary: minimal movement: multiply by 1.4

Minimal: office work or 1 hour of moderate activity per day: 1.5

Moderate: Light physical labor during the day, such as light housework, and an active lifestyle: 1.6

Very Active: Athlete, active military personnel, or heavy laborer: 1.9

This new number is amount of calories needed to maintain your current weight.
To lose weight, you need to eliminate calories through consuming less, and/or burning more through activity.

You need to eliminate 3500 calories to lose one pound. With a healthy goal of losing one pound per week, that means you must eliminate 500 calories per day. Most doctors and nutritionists caution against eating less than 1200 calories per day, to maintain good health.
It is a good idea to use a food and activity journal app to help accurately estimate the calories you are consuming, and how many you are burning through exe

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photos: Glasshouse Images

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