Keto Flu
Temporary symptoms when starting a ketogenic diet as body adapts.
What is Keto Flu?
Common Age
Adults starting keto diet
Prevalence
Affects 25-50% of people starting keto
Duration
1-2 weeks typically
Common Symptoms
- Fatigue and weakness
- Headache
- Brain fog
- Irritability
- Nausea
- Dizziness
- Muscle cramps
- Sugar cravings
Possible Causes
- Rapid carbohydrate restriction
- Electrolyte loss
- Dehydration
- Glycogen depletion
- Adaptation to fat burning
Note: These are potential causes. A healthcare provider can help determine the specific cause in your case.
Quick Self-Care Tips
- 1Increase sodium intake
- 2Eat potassium-rich foods
- 3Take magnesium supplement
- 4Stay well hydrated
- 5Get adequate sleep
- 6Consider gradual carb reduction
Disclaimer: These are general wellness suggestions, not medical treatment recommendations. They may help manage symptoms but should not replace professional medical care.
Detailed Treatment & Solutions
1ELECTROLYTES
Add salt to food, drink bone broth, take magnesium.
2HYDRATION
Drink more than usual.
3GRADUAL TRANSITION
Reduce carbs gradually over 1-2 weeks.
4FAT INTAKE
Ensure eating enough fat.
Important: Always consult a healthcare professional before starting any treatment regimen. The solutions above are for educational purposes and may not be suitable for everyone.
Risk Factors
- Abrupt carb restriction
- Inadequate electrolytes
Prevention
- Gradual transition
- Electrolyte supplementation
- Adequate hydration
When to See a Doctor
Consult a healthcare provider if you experience any of the following:
- Severe or prolonged symptoms
- Pre-existing conditions
- Symptoms beyond 2-3 weeks
Talk to a Healthcare Provider
If your symptoms are persistent, severe, or concerning, please consult with a qualified healthcare professional for proper evaluation and personalized advice.
Frequently Asked Questions
QHow long does keto flu last?
Typically 1-2 weeks, with symptoms peaking around days 3-5.
Was this information helpful?
Your feedback is anonymous and helps us improve our content.
Medical Disclaimer
The information on this page is for educational purposes only and is not intended as medical advice. It should not be used for self-diagnosis or self-treatment. Always seek the guidance of a qualified healthcare professional with any questions you have regarding a medical condition. If you are experiencing a medical emergency, call your local emergency services immediately.
Information last reviewed: January 2026
This page provides educational information only. It is not medical advice.