I have just recently started running 7 miles one time per week, running 4 miles 3 to 4 times per week, and sprinting once per week.
I am 14 years old, 5'6" and weigh 102 pounds, I need a good diet that will not cause me to gain weight and be able to help me to run strong and fast.
I really need advice from marathon runners, nutritionist, or any long distance runner.
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