Good Fats for Weight Loss: What to Know on Your GLP-1 Journey

Broadly speaking, nutrition science distinguishes between unsaturated fats (often described as "good" fats) and those eaten in large quantities from highly processed sources. Unsaturated fats — found in foods like avocados, olive oil, oily fish, nuts, and seeds — are commonly associated with heart health and sustained fullness, both of which are relevant when you are eating less overall.

Why fat still matters when appetite is reduced

Many people on a GLP-1 medicine such as Mounjaro (tirzepatide) or Wegovy (semaglutide) find their appetite drops considerably. Eating smaller portions makes it even more important that what you do eat is nutritionally dense. Fat is calorie-dense, so a little goes a long way — a drizzle of olive oil or a small handful of walnuts can add meaningful energy and micronutrients without needing large volumes of food.

What about supplements like CLA?

Conjugated linoleic acid (CLA) is a type of fatty acid found naturally in dairy and meat, and also sold as a supplement. Some people explore taking CLA alongside a weight-management programme. Evidence on CLA supplementation is mixed, and it is not a substitute for a balanced diet. If you are considering any supplement, it is worth discussing it with your prescriber or doctor first, particularly because some supplements can interact with medicines or affect how your body responds.

Fats to eat more mindfully

Heavily processed foods high in saturated or trans fats can be harder on the digestive system — something worth noting because gastrointestinal sensitivity is already common on GLP-1 medicines. Many people find that fatty, greasy meals can worsen nausea or loose stools, sometimes described colloquially as "GI symptoms" rather than a deliberate strategy. Reducing high-fat processed foods is generally sensible, especially early in treatment.

For a broader look at how nutrition fits into your overall results, the weight loss tracking guide covers the full picture. You might also find it useful to read about how Mounjaro supports a weight-loss programme and what role lifestyle factors play alongside medication.

Understanding which fats to include is one thing — actually tracking what you eat when your appetite is unpredictable is another challenge entirely. GLP Trackr's AI food photo scan makes this as low-effort as possible: point your camera at a meal and the app estimates calories, protein, and macros in seconds, without needing to weigh every ingredient or search a database manually.

Alongside food logging, GLP Trackr lets you set a daily protein target and monitor whether you are hitting it consistently — useful because protein and healthy fats together tend to support fullness better than either alone. The weekly progress view then shows how your food patterns, weight, and wellbeing data connect over time, so you can spot what is actually working for you rather than guessing.

Progress on a GLP-1 medicine is rarely perfectly linear. Weight can fluctuate week to week for reasons unrelated to fat intake — sleep, hydration, hormonal cycles, and activity all play a role. Tracking these alongside nutrition in one place means you bring a much richer picture to conversations with your prescriber. GLP Trackr's doctor report feature lets you export a summary of your journey specifically for those appointments.

If you are curious about how other approaches fit into a GLP-1 weight-loss programme, it is worth exploring complementary approaches like hypnotherapy or reading about other medications that may be considered alongside weight management.

A note on safety: Decisions about your diet, any supplements, and your medication should always be guided by your prescriber or doctor — they know your full health history. GLP Trackr helps you record and reflect on your journey; it is not a substitute for professional advice.

Ready to bring your nutrition and progress data together in one place? Download GLP Trackr on the App Store or Google Play and start a free 7-day trial — no commitment needed.