Why plateaus happen
As you lose weight, your body adapts. This isn't the medication "stopping working" — it's normal physiology:
- Metabolic adaptation: Your resting metabolic rate decreases as body mass decreases. A smaller body burns fewer calories at rest.
- Hormonal adjustment: Appetite-regulating hormones partially recalibrate to defend the new lower weight.
- Behaviour drift: As appetite suppression becomes your new normal, portion sizes may unconsciously creep up.
- Body composition shift: You may be losing fat while gaining muscle (especially if exercising), which can mask fat loss on the scale.
Most people experience their first plateau between months 3–6 of treatment.
How long do plateaus last?
Typically 2–6 weeks. If your weight has been stable for 2–3 weeks, it's likely a plateau. If it's been stable for 8+ weeks at the therapeutic dose, discuss with your doctor.
What actually works
- Check your dose: If you're still in escalation, you haven't reached the full therapeutic dose yet. The real weight loss happens at maintenance dose.
- Track your food for one week: Not to restrict — just to identify whether portions have crept up. Many people unconsciously eat more as appetite suppression becomes normal.
- Increase protein: Aim for 1.6–2.2g per kg body weight. Protein preserves muscle mass (which maintains metabolic rate) and increases satiety.
- Add resistance training: 2–3 sessions per week. Building muscle increases resting metabolic rate and improves body composition.
- Improve sleep: Poor sleep directly impairs hunger hormones and weight loss. Aim for 7–9 hours.
- Reduce liquid calories: Alcohol, sugary drinks, and caloric coffee drinks aren't affected by appetite suppression.
- Be patient: Most plateaus resolve on their own within 2–6 weeks.
What doesn't work
- Severe calorie restriction: Crash dieting on top of medication leads to muscle loss, nutrient deficiency, and rebound eating.
- Stopping medication: This will lead to weight regain, not breakthrough.
- Doubling your dose: Never adjust medication without medical guidance.
When to talk to your doctor
If your plateau lasts more than 8 weeks at the full therapeutic dose despite consistent medication, diet, and exercise, your doctor may consider adjusting the dose, adding a complementary medication, or investigating other factors (thyroid, medications causing weight gain, etc.).