• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
Fitness Fatale

Fitness Fatale

Marathon Nutrition for Female Runners

  • About Nicole Dobransky, Run Coach
    • Press
  • Run Coaching for Marathons and Half Marathons Women 35+
  • Run Fuel: Weight Loss Program for Runners
  • Blog
    • Archives
    • Race Reports
    • Recipes
    • Pregnancy
      • Twin Pregnancy
  • Fueled & Faster In Mid Life: Newsletter for Female Runners
  • Show Search
Hide Search

Why 160 Pound Runner May Not Lose Weight Eating 1,600 Calories a Day

Every single day, as a run coach and weight loss coach for female runners, I get messages in my inbox or I speak with a woman runner who is confused by the fact that they’re running more, or even training for a marathon, yet have gained weight.

And sometimes these women try a macros or calorie deficit to lose weight. 

Yet – despite being “good” all week, the scale doesn’t move when they weigh in on Monday. 

Here’s why –> Watch this 3 minute video where I break down, day by day, why a 1,600 calorie macro plan may not work for a female runner and why you may end up eating a sleeve of girl scout cookies on Saturday night (the Samoas are my favorite). If you watch to the end, I get a bit fired up because I truly hate seeing this happen. 

Why Calorie Counting and Macros Don’t Always Work To Lose Weight as a Runner

Here’s the obvious fact that is often ignored: 

Runners have different calorie needs each day, depending on whether they run 6 miles easy or do 8 x 400 intervals or lift weights. 

When a 160 pound runner tries to eat under 1,600 calories a day to lose weight, it may work for a 4 mile run day, but once they have a speed workout or a 10 mile long run, & they try to force a certain number or calories or macro split –> they end up either exhausted or eating a whole bag of chips.

So what DOES work? 

Nutrition Periodization Can Help Runners Lose Weight & Have Energy For Runs

Nutrition periodization – or a fancy way of saying – adjust what you eat based on your activity level and goals. 

If you’re familiar with running periodization, it’s the concept of training in phases, depending on how far away you are from your goal race. 

For example, in marathon training, there’s a base building where you’re working on increasing mileage, training your heart, and getting your bones, tendons and ligaments used to the increased pounding. In this season, you’re running either very fast for a short time (ex: 1 minute intervals) or very slow and your goal marathon pace feels pretty hard and unattainable. 

And then there’s, specific training, which you do in the 6 weeks leading up to the taper and race – where you’re now getting your body used to running at moderate, marathon effort. You might even run 3 x 5K at marathon pace – which is over 9 miles of running at marathon pace. 

But you won’t be able to handle the marathon pace runs without the base building phase – you can’t be impatient & skip steps.

How Quickly Can a Runner Lose Weight

When it comes to nutrition – runners often get impatient. They want to lose 10 pounds NOW & they revert to calorie cutting or cutting out food groups. They end up grumpy, deprived and are pretty convinced that it’s not worth it – because not only are they not able to lose weight or if they do, keep it off, but their runs feel like complete garbage. 

When you learn to periodize your nutrition (which is easier than it sounds because you don’t have to count calories or log protein in an app) to match your running and your goals – you will not only lose weight consistently, but your mood, energy and running performance will improve, not decline. 

I’ll be sharing more about periodization of nutrition in coming posts- but for now, I just wanted to remind you that you aren’t destined to hide your body in a one piece bathing suit if you also have running goals – you CAN love your body and improve your running. It will just take a different approach than you’ve used before.

Run Fuel – Weight Loss Program for Female Runners

Run Fuel is my weight loss program, designed just for female runners 35+. If you’ve gained weight while training for a marathon or half marathon, and want to learn how to lose it, keep it off and fuel your training for years to come so you can love your body AND run faster, Run Fuel will help.

Join Run Fuel

Share this:

  • Share on X (Opens in new window) X
  • Share on Facebook (Opens in new window) Facebook

Related

February 7, 2026 By fitnessfatale

Filed Under: Uncategorized

Primary Sidebar

Let’s Get Stronger, Healthier & Faster Together!

Archives

  • October 2026
  • September 2026
  • August 2026
  • July 2026
  • June 2026
  • May 2026
  • April 2026
  • March 2026
  • February 2026
  • December 2025
  • November 2025
  • October 2025
  • September 2025
  • August 2025
  • July 2025
  • June 2025
  • March 2025
  • February 2025
  • December 2024
  • November 2024
  • October 2024
  • June 2024
  • April 2024
  • March 2024
  • February 2024
  • January 2024
  • December 2023
  • November 2023
  • October 2023
  • September 2023
  • July 2023
  • June 2023
  • May 2023
  • April 2023
  • March 2023
  • February 2023
  • January 2023
  • December 2022
  • November 2022
  • October 2022
  • September 2022
  • August 2022
  • July 2022
  • June 2022
  • May 2022
  • April 2022
  • March 2022
  • February 2022
  • January 2022
  • December 2021
  • November 2021
  • October 2021
  • September 2021
  • June 2021
  • May 2021
  • March 2021
  • February 2021
  • January 2021
  • December 2020
  • November 2020
  • October 2020
  • August 2020
  • July 2020
  • June 2020
  • May 2020
  • April 2020
  • March 2020
  • February 2020
  • January 2020
  • December 2019
  • November 2019
  • October 2019
  • August 2019
  • July 2019
  • June 2019
  • May 2019
  • April 2019
  • March 2019
  • February 2019
  • January 2019
  • December 2018
  • November 2018
  • October 2018
  • September 2018
  • August 2018
  • July 2018
  • June 2018
  • May 2018
  • April 2018
  • March 2018
  • February 2018
  • January 2018
  • December 2017
  • November 2017
  • October 2017
  • September 2017
  • August 2017
  • July 2017
  • June 2017
  • May 2017
  • April 2017
  • March 2017
  • February 2017
  • January 2017
  • December 2016
  • November 2016
  • October 2016
  • September 2016
  • August 2016
  • July 2016
  • June 2016
  • May 2016
  • April 2016
  • March 2016
  • February 2016
  • January 2016
  • December 2015
  • November 2015
  • October 2015
  • September 2015
  • August 2015
  • July 2015
  • June 2015
  • May 2015
  • April 2015
  • March 2015
  • February 2015
  • January 2015
  • December 2014
  • November 2014
  • October 2014
  • September 2014
  • August 2014
  • July 2014
  • June 2014
  • May 2014
  • April 2014
  • March 2014
  • February 2014
  • January 2014
  • December 2013
  • November 2013
  • October 2013
  • September 2013
  • August 2013
  • July 2013
  • June 2013
  • May 2013
  • April 2013
  • March 2013
  • February 2013
  • January 2013
  • December 2012
  • November 2012
  • October 2012
  • September 2012
  • August 2012
  • July 2012
  • June 2012
  • May 2012
  • April 2012
  • March 2012
  • February 2012
  • January 2012
  • December 2011
  • November 2011
  • October 2011
  • September 2011
  • August 2011
  • July 2011
  • June 2011
  • May 2011
  • April 2011
  • March 2011
  • February 2011
  • January 2011

Footer

Copyright © 2026 · Fitness Fatale

Loading Comments...

You must be logged in to post a comment.