Calorie Counting Guide: Intake for Muscle & Weight Loss

Determining how many calories you need depends on your fitness goals, whether you are a marathon runner or a weightlifter. Use intake formulas to calculate your needs for muscle gain or sustainable weight loss.

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The Recommended Caloric Intake for Women at Age 35

Published Jul,08 2011 | By Kelli Cooper

The foods you eat contain a certain amount of calories -- units of energy your body draws for fuel. Your body needs calories not only for physical activity, but also to carry out its various functions such as digestion and breathing.