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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How Many Calories Should an Adult Male Have Per Day?

Calories are essential. They add weight, but they're also a measurement of energy that fuels your body and, thus, allows you to carry out daily activities. Everyone needs a minimum amount of calories to keep their heart, kidneys, lungs and other internal organs functioning, even if they sleep all day.

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