Back to Articles
Safety7 min readMarch 3, 2025
Does Semaglutide Make You Tired?
Understanding fatigue on Ozempic and Wegovy. Causes, how long it lasts, and strategies to manage tiredness.
By Med Consumer Watch Team
Fatigue is reported by some people taking semaglutide (Ozempic, Wegovy). Here's why it happens and what you can do about it.
How Common Is Fatigue?
What the data shows:
• Fatigue reported in about 5-10% of users
• More common during dose increases
• Often improves after body adjusts
• Usually mild to moderate severity
Why Tiredness Happens
Several contributing factors:
- Reduced calorie intake — your body has less fuel
- Blood sugar changes — especially if diabetic
- Dehydration — common with reduced appetite
- GI side effects — nausea and digestion issues are draining
- Rapid weight loss — can temporarily affect energy
- Sleep disruption — some report initial sleep changes
When Fatigue Is Concerning
Contact your provider if:
• Fatigue is severe or debilitating
• Accompanied by dizziness or fainting
• You feel confused or disoriented
• Doesn't improve after several weeks
• Interferes significantly with daily activities
Severe fatigue with other symptoms could indicate hypoglycemia or another condition requiring medical attention.
Management Strategies
To combat tiredness:
• Ensure adequate protein intake (at least 60-80g daily)
• Stay well hydrated (aim for 64+ oz water)
• Don't skip meals even with low appetite
• Get quality sleep (7-9 hours)
• Light exercise can actually boost energy
• Consider a B-vitamin complex
• Avoid extreme calorie restriction
Fatigue from eating too little is common and preventable. Track calories to ensure you're getting enough nutrition.
The Bottom Line
While semaglutide can cause some fatigue, it's often related to eating less and adjusting to the medication rather than a direct drug effect. Ensure adequate nutrition, hydration, and rest. Most tiredness improves as your body adapts. If fatigue is severe or persistent, consult your healthcare provider.
Sources & References
- FDA - Wegovy and Ozempic Prescribing Information
Medical Disclaimer
This article is for informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare provider before making decisions about your health or medications. Individual experiences may vary.