What to Eat on Ozempic or Mounjaro: A Nutritionist’s Guide
Quick answer: On a GLP-1 medication such as Ozempic, Wegovy or Mounjaro, focus on eating 80 to 120 grams of protein a day spread across meals, nutrient-dense whole foods, plenty of fibre and strength training two to three times a week. Your appetite drops, but your need for protein, vitamins and minerals does not, so every meal needs to work harder to protect your muscle and keep your results long term.
If you're using a GLP-1 medication, or thinking about it, you've probably noticed how much the conversation around weight has changed. These medications can be genuinely life-changing, especially for women who have worked hard at their health for years.
As a clinical nutritionist in Shellharbour, I'd love anyone on these medications to know one thing. When your appetite is turned down, the food you do eat matters more than ever.
How do GLP-1 medications like Ozempic and Mounjaro work?
GLP-1 is a hormone your gut naturally releases after eating. It tells your brain you're full, helps balance blood sugar and slows how quickly your stomach empties. The natural version lasts only a couple of minutes, while GLP-1 medications stay active for around a week.
Many women tell me the biggest change is the silence. The constant "food noise" and cravings ease, and highly processed foods lose their pull. As a result, most people eat much less, often 16 to 39 percent less energy each day.
Why does nutrition matter more on a GLP-1 medication?
Your appetite shrinks, but your nutritional needs don't. Your muscles still need protein, your bones still need calcium, and your immune system still needs zinc and vitamin C. Every cell still relies on magnesium, potassium and vitamin D.
Research on people using GLP-1 medications shows many aren't meeting their needs for fibre, calcium, iron, magnesium, potassium and vitamins A, C, D and E. Protein is often low and eaten mostly at dinner. Many people are eating less, but not necessarily eating better.
Signs you may be low in key nutrients include:
Fatigue and low energy
Thinning hair
Reduced strength
Low mood or poor sleep
Frequent colds
Digestive side effects such as nausea, bloating and constipation are also common and can make it harder to eat and absorb what your body needs.
Does Ozempic cause muscle loss?
Yes, it can. Not all the weight released on GLP-1 medications is fat. Some studies suggest up to 40 percent can come from muscle.
Muscle absorbs most of the glucose from your meals, supports your metabolism and keeps you strong and mobile as you age. When muscle is lost, metabolism slows, making results harder to maintain. For women in midlife and beyond, protecting muscle is especially important.
Will I regain weight after stopping Ozempic or Mounjaro?
Many people do. Research suggests around two-thirds of the weight released is often regained within a year of stopping, and regain can begin within a couple of months.
When appetite returns, and the body has less muscle and a slower metabolism, regain becomes much more likely. That's why the World Health Organization recommends GLP-1 medications be used alongside nutrition and lifestyle support, not on their own. Building a strong nutritional foundation while on the medication gives your results the best chance of lasting.
What should I eat on a GLP-1 medication?
When you're eating less, every meal needs to work harder. Focus on these six priorities
Protein at every meal. Aim for 1.2 to 1.6 grams per kilogram of body weight daily, roughly 80 to 120 grams for most women, with 30 to 40 grams at each meal.
Nutrient-dense whole foods. Choose foods that pack the most nourishment into a smaller portion, such as eggs, fish, lean meats, legumes, colourful vegetables, nuts, seeds, avocado and olive oil.
Fibre. Vegetables, legumes and wholegrains support digestion, feed your gut bacteria and help steady blood sugar.
Strength training. Resistance exercise two to three times a week is one of the most effective ways to protect muscle.
Eat to a plan, not to hunger. Because your hunger cues are quieter, a simple meal structure helps you eat well consistently.
Ease side effects. Smaller, regular meals, hydrating foods and not waiting until you're overly hungry can reduce nausea and keep nutrient intake up.
What else supports your health on a GLP-1 medication?
Movement: Walking absolutely counts, especially when energy is lower.
Sleep: Good sleep helps regulate blood sugar and appetite hormones.
Stress: Managing stress keeps cortisol and cravings in check.
What side effects should I know about?
Surgery: Always tell your surgeon and anaesthetist you're on a GLP-1 medication, as slower stomach emptying can affect anaesthetic safety.
Gallbladder: These medications are linked to a higher risk of gallstones.
Mood: Mood changes have been reported, so anyone with a history of mental health concerns should stay in close contact with their doctor
Questions about side effects, dosage or stopping your medication should always go to your prescribing doctor.
How can Metabolic Balance help alongside Ozempic or Mounjaro?
Metabolic Balance is a personalised nutrition program built from a comprehensive blood test and your health history, using real, whole foods chosen specifically for your body.
Protein sits at the centre of every meal to protect your muscle, and every food is chosen to deliver the most nourishment in a smaller portion. Most importantly, it builds lasting confidence with food, so you know what to eat and why. Because the plan is yours to keep, your foundation stays in place long after the medication ends.
Metabolic Balance can support you before, during and after a GLP-1 medication, alongside the decisions you make with your doctor.
Ready to make every mouthful count?
GLP-1 medications change how much you eat, not what you eat. Pairing them with personalised nutrition helps protect your muscle, meet your body's needs and keep your results for the long term.
If you're in Shellharbour, Wollongong, Kiama or anywhere across the Illawarra, or you'd prefer telehealth anywhere in Australia, I'd love to support you.
Book your Metabolic Balance consultation: Book Here
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