An average, active and healthy man needs about 2700 calories in a day. A woman doing normal household chores needs about 2500. Growing children and normal laborers need extra because their output of energy is greater.To calculate a more accurate figure, get down your ideal weight (that is, the weight at which you feel and look best and that which also collaborates with your height and your body frame).
If you are between the ages of 35 and 55, multiply the number by 15.
If you are between the ages of 18 and 55, add 200 to the figure you arrive at when you multiply your weight by 15.
If you are between the ages of 55 and 75, subtract 300 from the figure you arrive at after multiplying your ideal weight by 15. For example,
Assume that your ideal weight is 125.
Between the ages of 35 and 55, you need 125 x 15 = 1875 calories per day. Between the ages of 18 and 35, you need 125 x 15 = 1875 calories per day.
1875 plus 200 = 2075 calories per day.
Between the ages of 55 and 75, you need 125 x 15 = 1875;
1875 - 300 = 1575 calories per day.
Remember, however, that a person who does light or no physical work needs fewer calories and a person who does heavy physical work needs more.
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