How many calories does a marathon runner need to consume per day?

Answer 1

The number of calories marathon runners eat per day while training varies from person to person. Both women and men need to eat 2,000 to 2,500 calories per day plus an additional 100 calories for each mile they run. They also need to be sure that roughly 65 percent of their calories are coming from carbohydrates, especially complex carbohydrates.

Answer 2

That will vary quite a bit. Here are a few examples:

• At an average speed of 6mph, a 5'10", 180lb, male of 35 with a resting heart rate of 68bpm would expect to burn approximately 3607 calories.
• For a 5'5" female of 20 with a resting heart rate of 68bpm, she'd burn about 2546 calories at the same speed...
• If a 90 year old man at 320lbs and 5' even had a resting heart rate of 76bpm could run a marathon, he'd burn around 6790 calories.

You can calculate your own using the fun little calculator from Wolfram Alpha.

Answer 3

Depends upon the runner's gender, size, body composition and, most importantly, speed; however, as a generality: Elite marathonners burn around 1,400 calories per hour "Typical" marathonners burn 800-1,200 calories per hour. If you are asking about "calories ingested while running" instead of "calories burned," marathonners will typically take in 400-600 calories while running. The remainder of the calories burned come from the body's stores (e.g., muscle glycogen and body fat).

Answer 4

by marathon runner I would assume that a person has already run a marathon and is training for the second one or more.

I would say that this person eats from 3000 - 5000 calories depending on the intensity of the workout. I don't think eating less then 2500 on a marathon training plan would yield good results.