Recommended Calorie Consumption: What You Need to Know

Calorie recommendations are population-level starting points, not personal prescriptions. Various national health bodies publish broadly similar figures: roughly 2,000 calories per day is commonly cited as a reference point for adult women, and around 2,500 for adult men. These figures assume a relatively sedentary lifestyle; more active people typically need more.

Why the figure varies for women and men

Biological differences in average body size, muscle mass, and metabolic rate mean that recommended calorie intake for women is generally set a few hundred calories lower than for men. However, within each group the range is wide. A shorter, less active woman may maintain her weight on fewer than 2,000 calories, while a taller, more active man may need well above 2,500. Age also matters: calorie needs tend to fall gradually from middle age onwards as metabolic rate slows.

On a GLP-1 medicine, your appetite changes

Mounjaro (tirzepatide) and Wegovy (semaglutide) act on appetite-regulating pathways, and many people on these medicines find they naturally eat less without consciously trying. This makes it especially important to keep the calories you do eat as nutritious as possible — prioritising protein, fibre, and whole foods — rather than simply counting down to zero. Falling very significantly below your body's needs for extended periods can contribute to muscle loss alongside fat loss, so staying broadly aware of your intake matters.

For a deeper look at how a calorie deficit works in practice, see our guide to understanding your calorie deficit on a GLP-1 journey. You may also find it useful to read about what recommended calorie intake means day to day and our breakdown of average calorie intake for men for more context on the higher end of these ranges.

What about calories on a weight-loss programme?

When the goal is gradual, sustainable weight loss, many people eat below their maintenance level — this is a calorie deficit. General educational guidance from sources such as NHS guidance suggests a moderate deficit rather than a severe one, as very low calorie intakes can be hard to sustain and may lack essential nutrients. The specific deficit that is right for you is best discussed with your prescriber or doctor, who knows your full health picture.

Keeping track of what you eat when appetite is unpredictable is one of the more practical challenges on a GLP-1 journey. GLP Trackr's AI food photo scan makes it straightforward: point your camera at a meal and get an instant breakdown of calories, protein, and macros — no manual searching required. On days when you barely feel hungry, this kind of effortless logging is the difference between knowing where you stand and losing sight of your intake altogether.

Beyond individual meals, GLP Trackr lets you set a daily calorie target and track progress toward it throughout the day. The app's meal plans and recipe library are built around GLP-1-friendly eating — meals that are higher in protein, easier on the stomach, and designed to help you hit your nutritional goals even when portions are small. You can also explore how your calorie intake correlates with your energy, weight trends, and other factors through the app's insights tools, giving you a clearer picture of what is actually working for your body.

For more detail on daily intake numbers, our page on daily recommended calorie intake goes deeper on how to interpret these figures for yourself.

GLP Trackr is a tracking and journaling tool — it helps you record and understand your own patterns, but it is not a substitute for guidance from your prescriber or doctor. If you have questions about the right calorie level for your specific situation, your healthcare professional is the best person to ask.

Ready to make food tracking effortless? Download GLP Trackr on the App Store or Google Play and explore everything it offers with a free 7-day trial.