Women's Calorie Intake on Mounjaro and Wegovy: What to Know

Calorie requirements are not one-size-fits-all. Several factors shape how much energy a woman needs day to day:

• Body size and composition — a larger body or higher proportion of muscle mass means a higher baseline energy need.
• Activity level — someone who is sedentary needs fewer calories than someone who exercises regularly or has a physically demanding routine.
• Age — metabolic rate tends to decrease gradually over time, so calorie needs in later decades are generally lower than in younger years.
• Hormonal factors — pregnancy, breastfeeding, perimenopause, and menopause can all shift calorie and nutrient requirements. Always discuss these with your prescriber or doctor.

When appetite is suppressed by a GLP-1 medicine, it is easy to fall well below the intake needed to protect lean muscle and maintain energy. Many women on these medicines benefit from focusing on protein quality first — aiming for protein-rich foods at each meal helps preserve muscle even when overall food volume is lower. General guidance often suggests a target of around 1.2–1.6 g of protein per kg of body weight for people aiming to maintain muscle during a calorie deficit, though the right level for you is worth discussing with your healthcare professional.

Eating too little can also mean missing out on key micronutrients. Prioritising nutrient-dense foods — lean proteins, vegetables, dairy or fortified alternatives, wholegrains — makes each calorie count more. For a broader look at how a calorie deficit fits into a GLP-1 journey, see our guide to managing a calorie deficit on GLP-1 medicines. You may also find it useful to compare with average calorie intake for men to understand how needs differ between groups, or read more about daily calorie intake guidance for women for additional context.

Keeping a reliable picture of what you are actually eating is where many women on GLP-1 medicines find the biggest gap — appetite changes make portions unpredictable, and small, frequent meals are easy to forget to log. GLP Trackr's AI photo food scan is built for exactly this: point your camera at a meal and the app estimates calories, protein, and macros instantly, without manual searching or weighing.

From there, you can set a personal calorie and protein target inside the app, and your daily check-in keeps the running total visible so you can see at a glance whether you are hitting your goals or falling short. The insights feature goes further — over time it can surface patterns between your food intake, energy levels, and weekly progress, giving you something concrete to discuss at your next prescriber appointment.

For anyone thinking about how calorie targets interact with overall intake, it is also worth exploring our overview of calorie intake considerations for men to see how different factors shape individual needs across the board.

GLP Trackr is an informational and tracking tool — it is not a substitute for personalised guidance from your prescriber or doctor, who can help you set the right targets for your specific health history and goals. If you notice persistent fatigue, dizziness, or feel you are consistently unable to eat enough, contact your healthcare professional promptly.

Ready to take the guesswork out of eating well on your GLP-1 journey? Download GLP Trackr on the App Store or Google Play and explore every feature free for 7 days.