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.

How Many Calories Should a Competitive Swimmer Eat?

Published Jul,08 2011 | By Jake Wayne

Swimming competitively is a highly demanding activity. Olympic record-holding legend Michael Phelps ate 12,000 calories per day when training for competition. How much an individual swimmer needs will vary according to personal metabolism and training regimen.