Are GLP-1 Medications the Bad Guy? “Ozempic Face,” “Ozempic Personality,” Muscle Loss and More

Which medications are we talking about?

These medications, often called “weight-loss shots” or “weight-loss drugs,” go by different brand names, but there are only a few active ingredients:

• Semaglutide: Ozempic (injection) and Rybelsus (pill) for diabetes; Wegovy (injection and pill) for weight management.
• Tirzepatide: Mounjaro for diabetes; Zepbound for weight management.
• Orforglipron: Foundayo (pill) for weight management.
• Retatrutide: Not yet approved and still in clinical trials; it acts on three hormones at once.

Whether it's an injection or a pill, they all work in similar ways and have similar side effects. In this post I'll simply call them all “GLP-1 medications.”

What do GLP-1 medications do?

When you read what these medications are used for, you'll probably be as surprised as I am that they're so often made out to be the villain.

Appetite control: They act on the hunger center in the brain to quiet your appetite, making portion control easier and preventing intense hunger. If you're one of those people who is always thinking about what to eat and planning the next meal, you know exactly how much this “food noise” can take over your life.

Slower stomach emptying: Because digestion slows down, you feel full for much longer after a meal.

Weight loss: Combined with the right eating plan and lifestyle changes, they can lead to healthy and lasting weight loss.

Blood sugar control: They stimulate insulin release from the pancreas and lower HbA1c. They can also help reduce insulin resistance. For example, in a 3-year study of people with obesity and prediabetes, tirzepatide reduced the risk of developing type 2 diabetes by 94%.

Heart and blood vessel health: In clinical trials, semaglutide reduced the risk of heart attack, stroke and cardiovascular death in people with overweight or obesity who already had cardiovascular disease. These medications can also improve blood pressure, cholesterol and triglycerides.

Metabolic health: They reduce fat in the liver and help ease obesity-related conditions such as sleep apnea.

Obesity, cardiovascular disease (especially high blood pressure), type 2 diabetes and metabolic problems (high cholesterol and triglycerides, insulin resistance) are all serious conditions or can lead to serious health problems. So we can never ignore what GLP-1 medications can do for our health. BUT…

But…

We have to use them the right way. Otherwise, we can run into the problems below.

Undereating: You won't want a single bite, but your body will still need all of its nutrients. With a very fine balance, you have to get what you need from the small amount of food you can manage. And that's the frustrating part: when you can barely eat, how do you get enough vitamins, minerals, carbohydrates, fat and protein?

Low appetite, fatigue and muscle loss: Low appetite and fatigue are the side effects that bother me most, both in myself and in my clients. Eating too little means your body doesn't get the energy it needs, and you feel tired and drained during the day. At the same time, you need to do resistance training, because if you don't get enough protein and don't do strength work, you'll lose muscle. That's the dilemma I hear all the time: “I don't have the energy to work out, but I need to work out to get my strength back?”

If you lose more than a few pounds in a short time, some muscle loss is almost unavoidable, but past a certain point it becomes a problem. That's why it's not just about eating enough protein; you need the right exercise in the right amount, combined with the right nutrition. How much protein and what kind of exercise you need also varies from person to person. If you're losing weight fast and your only exercise is high-intensity running, with no strength training, you'll struggle to hold on to your muscle.

Digestive issues: Common side effects that usually ease as you adjust: nausea, vomiting, reflux, diarrhea, gas and bloating, and constipation. These mostly come from slower stomach emptying, and you'll find they ease or even disappear as your body gets used to the medication.

Ozempic face: Facial fat becomes very valuable for us women as we age, because after menopause it helps the face stay firm longer instead of looking hollow. With rapid weight loss on a GLP-1, facial fat can decrease quickly, and the skin over it may not tighten fast enough to keep up, so it sags. The result can look older and more tired. To avoid this as much as possible, steady, gradual weight loss is recommended over rapid loss. So don't push your doctor because you want the weight off as fast as possible. Let them adjust the dose for steady, controlled weight loss.

Ozempic personality: “Ozempic personality” isn't a recognized clinical diagnosis, and the term is often used on social media. I've heard about it from clients, too. Still, if you notice changes in your mood, motivation or interest in things you usually enjoy, bring them up with your doctor. Eating too little or feeling unwell during treatment may affect how you feel, but it's important not to assume the medication is the only possible cause.

Does the weight come back when you stop? People say the weight comes back quickly, and even more of it, once you stop the medication, and that's a fair observation. If you don't manage this period well and use that low-appetite phase as a chance to change how you live, then yes, the weight can come back with extra. Lately there's also a lot of talk about microdosing: instead of using a high dose for a while and then stopping, staying on a dose even lower than the lowest standard dose for the long term. Supporters say it helps the body and brain adjust to the new normal and keeps side effects down, but there isn't enough research on it yet. These medications also aren't made in divisible doses; they come in pen injectors, and dose adjustments outside the product's instructions carry risks. Any dose change should be discussed with the prescribing clinician.

Hair loss: Almost everyone on these medications worries about it. Rapid weight loss and vitamin and mineral deficiencies from undereating are possible causes, but other causes should be considered too. If needed, your doctor may assess your nutritional status and related blood levels such as iron, zinc and hormones. Nutrition planning and any vitamin and mineral supplements your doctor recommends can help.

Constipation: Constipation, which nearly everyone deals with, comes as much from the medication's effects on the body as from low fiber intake. Plenty of water and fiber are a must. If you can't eat enough to meet your fiber needs, consider psyllium husk. But taking a lot too quickly can cause serious gut discomfort, so increase it gradually and be sure to drink plenty of water.

What to keep in mind

How much a GLP-1 medication helps you, and how much its side effects hurt you, depends entirely on the decisions you make along the way. My recommendations:

• Never start a medication on your own, and never raise or lower the dose yourself. Use it only under your doctor's supervision, with lab tests and follow-up. Your doctor should decide on any vitamins or supplements to prevent deficiencies from undereating.
• Get support. Work with a qualified professional, especially on protein and meal planning, stress management, exercise and sleep.
• With smaller portions, every bite counts more. Instead of empty calories (sugary drinks, chips, ultra-processed snacks), choose nutrient-dense foods: dark leafy greens, colorful vegetables, whole grains, beans and lentils, dairy, eggs and fish.
• Protein: Science still hasn't settled on how much protein we need. We went from 0.8 g per kilogram of body weight a day to 1.6 g, and now 2 g is being discussed. People who ask “What about my kidneys?” are asking a fair question. It hasn't been shown that high protein harms healthy kidneys, but it's a different story for people with kidney disease. I'll write a separate post about this. For now, follow what your doctor and nutrition professional tell you, and tune out the noise on social media.

One day you'll get close to your goal weight and see your insulin resistance improve and your cholesterol and triglycerides return to normal. Your medication plan will be reassessed with your doctor over time: sometimes the dose is lowered, and sometimes treatment continues long term. I hope you get there without these side effects, reaching your goal weight, your health and your confidence in a planned, steady way. When you do, remember that what keeps you there will be the habits you built along the way. That's why it helps to see your time on the medication not just as a weight-loss phase, but as a chance to build a new way of eating and living.

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You're not alone in this! If you want to eat in a balanced, nourishing way, make lasting lifestyle changes and keep the weight off after the medication, the first step is a free 20-minute consultation.

Take care.

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