What are the Benefits of Fasting for 36 Hours?

Benefits of 36-Hour Fasting – Healthy Foods, Clock, and Glass of Water Representing Extended Fasting
Madhavi Mahajan
Medically Reviewed
Madhavi Mahajan
Assistant Team Lead - Health Coach
March 20, 2025

Fasting has gained widespread attention for its health benefits, and the 36-hour fast is a powerful method that offers a balance between shorter fasting windows and prolonged fasts. This fasting approach allows your body to go beyond the benefits of intermittent fasting while remaining more manageable than extended fasts.

By abstaining from food for a day and a half, your body undergoes metabolic shifts that improve fat-burning, insulin sensitivity, and mental clarity. Many who practice 36-hour fasting report increased focus, better digestion, and an overall sense of well-being.

However, to maximize its benefits, it’s crucial to prepare properly, understand what to eat before and after, and follow safety precautions.

Benefits of a 36-Hour Fast

Fasting for 36 hours can bring several significant health benefits:

  1. Metabolic Boost & Fat Loss

    • Shifts the body into fat-burning mode (ketosis) after glycogen stores deplete.

    • Enhances insulin sensitivity, leading to better blood sugar regulation.

  2. Cellular Repair & Longevity

    • Triggers autophagy, a process that removes damaged cells and regenerates new ones.

    • Helps reduce inflammation, supporting long-term health.

  3. Increased Mental Clarity & Focus

    • Boosts Brain-Derived Neurotrophic Factor (BDNF), which supports cognitive function.

    • Many report improved focus, energy, and mood.

  4. Hormonal Benefits

    • Stimulates growth hormone production, aiding in muscle preservation and fat metabolism.

    • Increases GLP-1 (Glucagon-Like Peptide-1), a hormone that regulates appetite and enhances metabolism.

  5. Improved Digestion

    • Gives the gut a break from constant digestion, reducing bloating and improving gut health.

    • Can help reset unhealthy eating patterns.

What to Eat Before and After a 36-Hour Fast

1. Pre-Fast Nutrition (What to Eat Before Fasting)

2. Breaking the Fast (What to Eat After Fasting)

How 36-Hour Fasting Compares to Other Fasting Methods

Fasting Type

Duration

Key Benefits

Considerations

Intermittent Fasting (16:8, 18:6, 20:4)

16-20 hours

Easier to maintain, mild metabolic benefits

Doesn’t trigger deep autophagy or extended ketosis

24-Hour Fast

24 hours

Helps with calorie restriction, some metabolic benefits

Not long enough for full autophagy effects

36-Hour Fast

36 hours

Stronger fat-burning, increased autophagy, mental clarity

Requires planning, can cause fatigue for beginners

48-Hour Fast

48 hours

More extended autophagy, deep ketosis

Higher risk of energy depletion, harder to maintain

72+ Hour Fast

3+ days

Maximum autophagy and cellular repair

Risk of muscle loss and extreme fatigue

A 36-hour fast provides a balance—offering deeper metabolic benefits than intermittent fasting while being easier to sustain than prolonged fasts.

Safety Tips for a 36-Hour Fast

  1. Stay Hydrated

    • Drink water, herbal teas, and black coffee to avoid dehydration.

    • Electrolytes can help prevent fatigue and headaches.

  2. Listen to Your Body

    • If you feel dizzy, excessively weak, or unwell, break the fast safely.

    • Fasting should enhance health, not cause discomfort.

  3. Choose the Right Timing

    • Avoid fasting during high-stress periods or when doing intense physical activity.

    • Plan your fast around less demanding days.

  4. Consult a Doctor If Necessary

    • If you have medical conditions like diabetes, low blood pressure, or are on medication, seek professional advice before fasting.

Need Expert Guidance on How to Loose Weight Without Fasting?

Fating for long hours is a real task! Who can keep up with not eating their favorite dishes just like that! Some people are unable to do it because of their blood sugar levels or weak metabolisms but worry not!

Elevate Now provides expert-backed strategies to help you optimize fasting for better results, enhanced fat-burning, and improved mental clarity.

How Elevate Now Enhances Your Fasting Journey:

  1. Pre-Fast Planning for Maximum Results

    • Customized meal plans for better energy levels.

    • Best foods to eat before fasting to reduce hunger.

  2. Maximizing Fat-Burning & GLP-1 Activation

    • Understanding how GLP-1 boosts appetite control and metabolism during fasting.

    • How to accelerate ketosis and autophagy effectively.

  3. Managing Hunger & Energy Levels

    • Tips to sustain energy and avoid fatigue.

    • How to maintain focus and avoid common fasting mistakes.

  4. Best Practices for Breaking Your Fast

    • How to reintroduce food without digestive discomfort.

    • What to eat first to maintain fasting benefits.

  5. Long-Term Fasting Success

    • How to make fasting a sustainable habit.

    • Incorporating fasting into a balanced lifestyle.

The 36-hour fast is a powerful tool for improving metabolic health, enhancing mental clarity, and promoting cellular repair. It provides deeper benefits than shorter fasting methods while remaining more accessible than prolonged fasts.

To maximize results, focus on proper pre-fast nutrition, safe fasting practices, and a mindful refeeding process. Staying hydrated and listening to your body ensures a safe and effective fasting experience.

If you’re looking for a sustainable way to improve your health, the 36-hour fast might be the perfect fit. Plan your fast wisely, stay committed, and experience the remarkable benefits this fasting method has to offer!

References

Disclaimer: The information provided in this blog is for general informational purposes only and is compiled from publicly available sources. It is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have regarding a medical condition. Reliance on any information provided in this blog is solely at your own risk. We do not guarantee the accuracy, completeness, or usefulness of this information.

Back to blog

Related Articles