The first five reasons your weight loss may be stalling on Ozempic covered dose, timing, diet consistency, missed injections, and medication conflicts. Here are the remaining five, which tend to be less obvious and more frequently overlooked.

6. An Underlying Condition Hasn’t Been Addressed

Hypothyroidism slows metabolism. PCOS disrupts insulin sensitivity. Perimenopause shifts fat distribution. Sleep apnea wrecks sleep quality in ways that directly affect hunger hormones. Any of these creates a biological environment where weight loss is genuinely harder, not by neutralising semaglutide, but by fighting it from another direction. Undiagnosed or poorly managed conditions need to be addressed alongside the medication, not after it.

7. You’re Losing Muscle, Not Just Fat

Research shows up to 39% of the weight lost on semaglutide can come from lean muscle mass. The reduced appetite that makes Ozempic work also reduces protein intake, which accelerates muscle loss. Muscle burns more calories at rest than fat does, so losing it slows your metabolic rate over time, making continued loss harder and regain faster. Resistance training two to three times a week and deliberately prioritising protein intake are practical counters to this, not optional extras.

8. Sleep and Stress Are Undercutting Progress

Chronic elevated cortisol actively promotes fat storage, especially around the abdomen. Poor sleep disrupts ghrelin and leptin, the hormones that regulate hunger and fullness, making you feel hungrier than you should, even on semaglutide. Harvard T.H. Chan School of Public Health data links poor sleep to higher rates of weight gain. Seven to nine hours isn’t a lifestyle tip in this context. It’s clinical.

9. You’ve Hit a Genuine Plateau

Plateaus are biologically normal on semaglutide. As you lose weight your body needs fewer calories, and metabolism adapts through a process called adaptive thermogenesis, becoming more efficient in response to the deficit. STEP trial data shows weight loss on semaglutide tends to plateau around 16 to 18 months. Hitting a flat period at month eight or nine doesn’t mean the medication stopped working. It may mean adjusting dose, nutrition, or activity, or asking your clinician whether tirzepatide, which targets both GIP and GLP-1 receptors, makes more sense for you at this point.

10. Not Everyone Responds the Same Way

Around 14% of people on semaglutide lose less than 5% of their starting body weight, even with full adherence and genuine lifestyle effort. Genetics, metabolic complexity, and individual biology all influence response. If you’ve addressed the controllable factors and results are still poor, the question isn’t “should I push through.” It’s “is this the right medication for me.”

What to Do If You’re Not Getting Results

Don’t adjust your dose yourself. Don’t stop without speaking to your prescriber. And don’t assume the problem is willpower. The reasons above are about biology, medication conflicts, and metabolic adaptation, none of which are solved by just trying harder.

If you’re not getting the expected results, speak with a clinician rather than changing treatment yourself.

Book a weight-management consultation with Botaderm to get your progress assessed properly.

Related: Ozempic for Weight Loss: Side Effects, Who Should Avoid It, What to Expect · What Happens When You Stop Ozempic · Weight-Loss Injections: How They Work and Who May Be Eligible