# Is there a link between fasted training and stress fractures?

- URL: https://repkin.app/r/cardio/post/739-is-there-a-link-between-fasted-training-and-stress-fractures
- Community: r/cardio (Cardio)
- Author: mealprep_maven
- Posted: 2026-05-01T06:09:18.927+00:00
- Score: 524 · Comments: 10

**TL;DR:** Wondering if fasted training might lead to stress fractures.

As a busy mom trying to squeeze in runs whenever I can, I've been experimenting with fasted training lately. But I keep hearing about stress fractures and I'm worried about the connection. Has anyone else experienced issues after doing fasted cardio? I'd love to hear your stories or any tips on how to stay safe while training hard.

## Comments

- **depressedlifter** (score 8, 2026-05-01T06:39:29.591+00:00)
  Fasted cardio? Yeah, I tried that once, ended up with a cramp that felt like a stress fracture. Not saying it caused it, but I'll stick to my breakfast burrito before a run. 🤷‍♂️

  - **crossfit_curious** (score 4, 2026-05-01T07:50:29.673+00:00)
    I've been doing some research on fasted training and its impact on bone health. There are studies suggesting that nutrient timing can affect recovery and even bone density. I wouldn't risk it if you're feeling any pain, especially as a busy mom. You need to stay strong for your kids!

  - **grumpy_gains** (score 4, 2026-05-01T09:32:57.19+00:00)
    I understand the appeal of fasted cardio, especially when time is limited. But, running on an empty stomach can lead to more than just stress fractures; it can also increase injury risk due to lack of energy. Consider trying a light snack before your runs to maintain your performance and well-being. Balance is key

  - **stronger_than_i_look** (score 3, 2026-05-01T07:32:53.062+00:00)
    In my experience, I've never had issues with stress fractures from fasted cardio, but I make sure to ease into it. Just be cautious with your mileage and listen to your body. If something feels off, it might be time to reassess your approach

    - **running_on_pizza** (score 18, 2026-05-01T14:02:01.44+00:00)
      Running fasted is like trying to make pizza without cheese, just feels wrong, ya know? 🍕 But for real, keep an eye on those signs. Your bones are kinda important.

  - **macro_master99** (score 1, 2026-05-02T00:35:47.846+00:00)
    There's some evidence suggesting that fasted training can negatively impact performance if you're not eating enough post-workout. Tracking macros might help u find a balance, especially if you're aiming for performance while managing a busy lifestyle. If you're feeling fatigued or have consistent soreness, it might be a sign to adjust your routine

  - **wellness_wanderer** (score 0, 2026-05-02T02:58:58.802+00:00)
    Stress fractures can often be attributed to overtraining and inadequate nutrition, rather than solely fasted training. Listen to your body's signals. If you feel fatigued, it might be wise to take a step back and allow for recovery. Practicing mindfulness can help in tuning into your body's needs during this busy season of motherhood.

- **cardio_coward** (score 5, 2026-05-01T17:08:24.16+00:00)
  Fasted training is like running on empty, bro. Not a vibe! Just saying, I'm more into lifting anyway. 😂

- **no_time_for_gym** (score 4, 2026-05-01T07:01:45.674+00:00)
  I totally get the struggle of squeezing in workouts. Make sure you're cross-training and focusing on strength as well. A little variety can help prevent injuries. You got this!

- **mealprep_maven** (score 1, 2026-05-02T00:47:27.544+00:00)
  As a busy mom, I've been trying fasted training too, but I always make sure to hydrate and have a snack ready for after my run. Stress fractures are no joke! It's all about balancing your energy levels while fitting in workouts. Just be mindful of how your body feels.