What to do while taking Wegovy to get the most from treatment

Your appetite has changed, here is what to eat now

Imagine sitting down to a meal three weeks into treatment and realising you have eaten half your usual portion and feel done. That is Wegovy working. Semaglutide slows gastric emptying and signals fullness through GLP-1 receptors, which means total food intake drops. The risk is not overeating, it is under-nourishing.

The NHS healthy weight guidance recommends building meals around vegetables, lean protein and wholegrains. On Wegovy, protein becomes the priority: it supports muscle retention during weight loss and keeps hunger settled between meals. Aim for a palm-sized portion of chicken, fish, eggs, legumes or dairy at each meal, even if the portion overall is smaller than before. Fibre helps too (vegetables, oats, lentils) partly for satiety, partly for gut health, which matters when the medication is already slowing digestion.

Hydration is underrated here. Reduced appetite can reduce thirst signals as well, and dehydration tends to amplify the nausea some people notice at the start of treatment or after a dose step. Keep water accessible throughout the day. Alcohol is not prohibited but sits alongside fatty or rich food as something many people on semaglutide find their tolerance for has shifted, worth noting before a celebration.

If you find yourself eating very little for several days, contact your prescriber. Severe restriction on top of a GLP-1 medicine is not the goal, and your clinical team can help you find the balance.

Moving your body: the type of exercise that works alongside Wegovy

Here is something that surprises people: not all exercise produces the same result when you are losing weight with a GLP-1 medicine. Cardiovascular activity is good for heart health and mood, and it counts. But when weight loss is rapid, the body can reduce muscle alongside fat, and muscle is metabolically active tissue you want to keep.

Resistance exercise (bodyweight movements, resistance bands, weights at a gym, or even heavy gardening) signals to the body to preserve muscle. It does not need to be intense. Two or three sessions a week of 20 to 30 minutes is a reasonable starting point, built up gradually. If your joints are managing and your energy allows, adding more is fine.

A question our prescribers hear regularly: what if I am too tired in the first few weeks to do much? That is common. Nausea, fatigue and adjustment are normal in the early dose period. Gentle walking is enough while you settle. The important thing is that activity increases over time, not that it is heroic from week one.

The NHS England guidance on weight-management injections is clear that lifestyle changes alongside medicine (rather than medicine alone) produce the best results. Wegovy is a tool, not a replacement for movement.

Safety signals to watch for, and when to act

Most side effects from Wegovy are gastrointestinal (nausea, loose stools, constipation, indigestion, burping) and they tend to be most noticeable in the first days after starting or stepping up a dose. For many people they settle within a week or two. Eating bland, lower-fat meals and avoiding large portions helps during those early days. There is more detail on foods and habits to avoid on Wegovy if you want to read further.

Some symptoms need prompt attention. In January 2026 the MHRA issued a Drug Safety Update reminding patients and clinicians that acute pancreatitis (though uncommon) can occur with GLP-1 medicines: severe, persistent stomach pain that spreads to the back, with or without vomiting, means stopping the injection and getting urgent medical help. Do not wait to see if it settles. Signs of a serious allergic reaction, gallbladder pain, or significant dehydration from persistent vomiting or diarrhoea are also reasons to seek care without delay.

If you are taking any oral medicines, including the contraceptive pill, tell your prescriber, GLP-1 medicines can affect absorption of some oral drugs. Any suspected side effect can be reported directly to the MHRA at yellowcard.mhra.gov.uk. You do not need to wait for a GP appointment to do so.

There is a fuller overview of the clinical profile of semaglutide for anyone who wants the background evidence, and the FAQs page covers common questions our team fields week to week.

Keeping the routine going: injections, repeat orders and the longer picture

Wegovy is a once-weekly injection, taken on the same day each week where possible. Life gets in the way, that is realistic. If your chosen day shifts by a day or two, it is generally fine; the Patient Information Leaflet gives the specific guidance on missed doses, and your prescriber can advise on your individual situation. What matters is consistency over months, not perfection on every single date.

Repeat orders are worth thinking about a little ahead of time. If your delivery lands on a Tuesday and you order the week before, you are fine. If you are planning a holiday, ordering before you travel avoids the stress of managing a gap. Orders placed at nume by 12pm Monday to Friday, once reviewed and approved, are dispatched the same day and arrive the next working day by tracked DPD delivery. Every repeat goes through a fresh clinical review, this is not automatic.

On cost: Wegovy is a private prescription medicine not widely available on the NHS except through specialist pathways with long waiting lists. Understanding what Wegovy costs through a private pharmacy and what those prices include (consultation, prescribing, delivery, aftercare) helps you compare options fairly. The weight-loss treatment overview is a useful starting point if you are still weighing up which medicine fits your situation.

The longer picture matters too. Wegovy is typically used as part of an extended programme of weight management. Clinical trials ran to 68 weeks and beyond; sustained benefit comes from sustained treatment alongside the lifestyle habits you build during it. Our guidance on what to do while you are on Wegovy covers the broader habits worth building into your routine, and if you want a closer look at the practicalities around each injection, the advice on what to do when you are actually taking Wegovy walks through the process in detail. Starting Wegovy is the beginning of a process, not a quick fix, and that framing tends to make the whole experience steadier.