GLP-1 medication: what you need to know before you start

GLP-1 medication has attracted a lot of attention in recent years as a tool for weight loss. You may know the best-known names, such as Ozempic or Wegovy, but for many people it's still unclear what actually happens in the body. Before you consider starting, it's worth knowing what it is, who it's for, and what to watch out for.

GLP-1 stands for glucagon-like peptide-1, a hormone your body naturally produces after eating. It keeps your blood sugar stable and gives a feeling of fullness. GLP-1 medication mimics this hormone, so you feel full sooner, feel less hungry, and your stomach empties more slowly. The result: many people naturally eat less, without it feeling like a strict diet.

That sounds appealing, but this kind of medication isn't a quick fix that's suitable or sensible for everyone. A doctor first looks at your BMI, your overall health and your medical history. People with certain thyroid conditions or a history of pancreatitis, for example, don't qualify. Pregnancy and breastfeeding are also reasons not to start (yet).

Side effects are common, especially in the first few weeks: nausea, a feeling of fullness, sometimes diarrhoea or constipation. For most people these symptoms ease as the body gets used to the medication. A doctor therefore usually increases the dose gradually, and monitors how you respond.

What's often underestimated: GLP-1 medication works best combined with changes to diet and exercise, not as a replacement for them. Anyone who stops the medication without changing their lifestyle runs a real risk of regaining weight. That's why proper guidance, which also looks at sustainable habits, is part of a responsible approach.

In short: GLP-1 medication can be a valuable tool, but it's not an end in itself. An honest assessment of your situation by a doctor, combined with realistic expectations and attention to lifestyle, is what makes the difference between a temporary result and lasting change.