What If Slower Weight Loss Is Actually Smarter?

At The Health Dispensary, we believe in real health – not hype. That’s why our pharmacist-led weight management service, available in Neath and now launching UK-wide, provides safe, clinical support for people using Mounjaro® (tirzepatide) or exploring whether it’s right for them. If you’ve been hearing about weight-loss injections or you’re already on Mounjaro and wondering if your progress is “normal”, this is for you.

The Buzz Around Mounjaro – Does It Really Work?

You may have seen headlines about Mounjaro helping people lose up to 22.5% of body weight over roughly 72 weeks (SURMOUNT-1). In practical terms:

• 5 mg dose: around 15–16% average weight loss at ~72 weeks.
• 10–15 mg: up to ~22.5% on average.
• Wegovy® comparison: ~16.9% at similar timeframes in STEP trials.

These are averages. Some lose more, others less. It’s not a race; the aim is better health that lasts.

Why “Slower” Might Be Smarter

You don’t need 20% loss to benefit. Even 5–10% can improve blood pressure, blood sugar and cardiovascular risk. Lower doses can be more tolerable and cost-effective, yet still deliver meaningful change.

Comparison Culture: Kindness Over “Before & After”

Social feeds can make rapid transformations look universal. Your metabolism, medical history, stress, hormones, sleep and activity all influence outcomes. You’re not a statistic; you’re a person.

This Is Not a Crash Diet

Obesity is a chronic health condition, not a willpower issue. Medications like tirzepatide help regulate appetite and glycaemia, but the best results come with a long-term mindset, nutrition, movement, sleep and support.

The Muscle vs Fat Reality

During weight loss, you don’t only lose fat. A rule of thumb is roughly 1 kg lean mass per 3 kg fat unless you act to preserve muscle. Protect results by:

• Hitting adequate protein daily.
• Doing resistance/strength training 2–3× weekly.
• Tracking how you feel, not just the scales.

Is the 5 mg Dose “Good Enough”?

For many, yes. Side-effects, cost and life all matter. People on 5 mg often see around 15% average loss over time. Health gains frequently start at 5–10%. Some will escalate dose; others stay lower for longer. The right plan is the one you can stick with safely.

What You Can Expect – A Gentle Timeline

• Weeks 4–12: Variable response; appetite regulation begins.
• 3–6 months: More consistent appetite control; visible change.
• 6–12 months: Steady progress if habits are in place.
• 12–18 months: Plateaus are common; health gains often continue.

So… What’s the Goal?

• Better blood pressure & blood sugar
• Improved energy, sleep and joint comfort
• More confidence, less pain

If you’re losing weight slowly, steadily and sustainably – you’re doing it right.

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Written by Ali Sparkes BSc (Hons), MSc Econ, FRPharmS, IP

Medical disclaimer: This article is for information only and not a substitute for personalised medical advice. Always consult a qualified healthcare professional (like ours) about your own circumstances.