Nausea after Running: Causes and Solutions - aZengear
Healthy Lifestyles

Nausea after Running: Causes and Solutions

by Emily Jannet on Nov 20, 2023

Running is a fantastic way to stay fit and healthy, but for some, it comes with an unwelcome companion – nausea. In this article, we'll delve into the causes behind nausea after running and explore effective solutions to help you enjoy your runs without the unpleasant aftermath.

Causes of Nausea After Running

  • Dehydration

One of the primary culprits behind post-run nausea is dehydration. When our bodies lack sufficient fluids, it can lead to a range of issues, including nausea. It's crucial to stay adequately hydrated before, during, and after your run.

  • Overhydration

Interestingly, overhydration can also be a cause. Consuming excessive amounts of water, especially right before or during a run, can disrupt the balance of electrolytes in your body, resulting in nausea.

  • Low Blood Sugar Levels

Running on an empty stomach or inadequate pre-run nutrition can lead to low blood sugar levels, causing nausea. Ensuring you have a balanced meal or snack before running is essential.

  • Intense Exercise

Pushing yourself too hard during a run, especially if you're not accustomed to high-intensity workouts, can trigger nausea. Gradual increases in exercise intensity are key to avoiding this issue.

  • Poor Nutrition Choices

The foods you eat before running play a significant role. Greasy, heavy, or spicy foods may not sit well during a run, contributing to feelings of nausea.

Physical Factors Contributing to Nausea

  • Impact on the Digestive System

Running diverts blood away from the digestive system to supply the muscles. This shift can lead to nausea as the digestive process is temporarily slowed down.

  • Blood Flow Redistribution

Understanding how blood flow changes during running helps in mitigating nausea. Certain breathing techniques and maintaining a consistent pace can help manage blood flow.

  • Breathing Patterns

Irregular breathing patterns, especially when pushing yourself, can contribute to nausea. Focusing on controlled and rhythmic breathing can make a significant difference.

Psychological Factors

  • Anxiety and Stress

Mental factors, such as anxiety and stress, can manifest physically during or after a run. Incorporating mindfulness practices can help alleviate these psychological triggers.

  • Mental Fatigue

Long runs or intense training sessions can lead to mental fatigue, contributing to nausea. Balancing exercise with adequate rest is crucial.

  • Mind-Body Connection

Recognizing the connection between your mind and body is key. Developing mental resilience and positive associations with running can reduce the likelihood of post-run nausea.

Prevention Strategies

  • Hydration Tips

Stay hydrated throughout the day, not just during your run. Pay attention to electrolyte balance, especially if you sweat heavily.

  • Balanced Nutrition

Consume a well-balanced meal or snack with a mix of carbohydrates, proteins, and healthy fats before your run.

  • Gradual Increase in Exercise Intensity

Avoid sudden spikes in your running intensity. Gradually increase the duration and intensity of your runs to allow your body to adapt.

  • Mindfulness Techniques

Incorporate mindfulness practices such as deep breathing or meditation to manage stress and anxiety, reducing the likelihood of nausea.

Immediate Relief Measures

  • Breathing Exercises

Practice deep breathing exercises to calm your body and mind. Focus on exhaling fully to release tension.

  • Rest and Recovery

If nausea strikes, give your body the rest it needs. Lie down, relax, and allow your system to recover.

  • Anti-Nausea Medications

In extreme cases, over-the-counter anti-nausea medications can provide relief. Consult with a healthcare professional before using any medication.

When to Seek Professional Help

  • Persistent Nausea

If nausea persists despite preventive measures, consult a healthcare professional to rule out underlying issues.

  • Underlying Medical Conditions

Nausea could be a symptom of an underlying medical condition. If you experience frequent or severe nausea, seek medical advice promptly.


In conclusion, understanding the causes of nausea after running empowers you to take proactive steps. By addressing dehydration, poor nutrition, and psychological factors, you can enjoy your runs without the unpleasant aftermath. Remember, every runner is unique, so finding what works best for you is essential.


  1. What should I eat before running to prevent nausea?

A balanced meal with carbohydrates, proteins, and healthy fats is ideal.

  1. Is nausea during running a sign of a serious health problem?

Not necessarily, but persistent nausea should be discussed with a healthcare professional.

  1. How long does post-running nausea typically last?

It varies but usually subsides within a few hours.

  1. Can dehydration cause nausea even if I drink water during my run?

Yes, consistent hydration throughout the day is crucial.

  1. Are there specific breathing techniques to alleviate nausea?

Deep, controlled breathing can help calm the body and reduce nausea.