The 30-second summary
- The Wegovy pill is semaglutide, the same medicine as the Wegovy injection, as a tablet you take every day. It is approved in the US and, since June 2026, in the UK.
- The routine is strict for a reason. Very little of each tablet is absorbed, and food, drinks or too much water in the stomach reduce that further. Empty stomach, a sip of water, then wait at least 30 minutes.
- Breakfast still matters. Once the 30 minutes are up, a breakfast built around protein sets up the day, and small meals help with the nausea that is common while the dose climbs.
What the Wegovy pill is
Wegovy tablets contain semaglutide, the same active ingredient as the weekly Wegovy injection. The UK prescribing information describes them as an addition to a reduced-calorie diet and more physical activity, for weight loss and keeping weight off, in adults with a BMI of 30 or more, or 27 or more with at least one weight-related health problem. The UK licence was first granted on 11 June 2026.
The dose climbs in monthly steps:
| Step | Daily dose |
|---|---|
| Month 1 | 1.5 mg |
| Month 2 | 4 mg |
| Month 3 | 9 mg |
| Month 4 onwards | 25 mg, the maintenance dose |
The US label sets the steps at days 1 to 30, 31 to 60 and 61 to 90, then 25 mg from day 91, and says to consider delaying an increase if a dose is not tolerated. The UK prescribing information says each step should last at least a month and, if needed, the dose can stay at the previous level. In both countries it is one tablet a day, never more.
How to take it
The two labels say almost the same thing, with small differences worth knowing.
| United States | United Kingdom | |
|---|---|---|
| When | Once a day, in the morning | Once a day |
| Stomach | Empty | Empty, after fasting for at least 8 hours |
| Water | Plain water only, up to 4 oz | A sip, up to 120 ml (half a glass) |
| How | Swallow whole; do not split, crush, chew or dissolve | Swallow whole; do not split, crush or chew |
| Then | Wait at least 30 minutes before food, drinks or other oral medicines | Wait at least 30 minutes before food, drinks or other oral medicines |
In practice that means taking the tablet as soon as you wake, with a small glass of water, and then doing something else for half an hour before breakfast, coffee or any other tablets.
Why the rules are so strict
Most of each tablet is never absorbed. The US label puts the share of semaglutide that reaches the bloodstream at about 1% to 2%, and the UK prescribing information describes absorption as low and variable, taking place mainly in the stomach. The tablet contains an ingredient, salcaprozate sodium, that helps semaglutide get through.
Anything else in the stomach gets in the way:
- Food and drink. The UK prescribing information says waiting less than 30 minutes decreases absorption. The US label reports that absorption was higher with a longer wait after the dose.
- Too much water. In a study reported in the US label, absorption was higher when the tablet was taken with 50 ml of water than with 240 ml.
Because each dose delivers so little, getting the routine right every day is what makes the medicine work.
What to eat around it
The night before. The UK instruction is to fast for at least 8 hours before the tablet. If you take it at 7am, that means finishing eating by 11pm. A late-night snack is the easiest way to break the rule without noticing.
The first 30 minutes. Water with the tablet, then nothing: no coffee, tea, juice, milk or other tablets. Shower, get dressed, walk the dog.
Breakfast. When the half hour is up, build breakfast around protein. On a smaller appetite, it is the part of the meal most worth getting in first. A 2025 joint advisory on nutrition during GLP-1 treatment, from four US nutrition and obesity medicine societies, suggests eating protein-rich foods first in a meal, and regular small meals rather than long gaps. Eggs, Greek yoghurt, cottage cheese or a protein-rich bake all work. (See breakfast on a GLP-1 and the GLP-1 breakfast recipes.)
Coffee and tea. Fine, after the 30 minutes. The US label says the tablet itself should be taken with plain water only.
The rest of the day. Nothing about the pill changes lunch or dinner. Smaller meals, protein first, and enough fluid, especially during the first months while the dose climbs. (See your first week on a GLP-1.)
Side effects
The UK prescribing information reports the stomach side effects from the 64-week OASIS 4 trial of the 25 mg tablet:
| Side effect | Semaglutide tablets | Placebo |
|---|---|---|
| Nausea | 46.6% | 18.6% |
| Vomiting | 30.9% | 5.9% |
| Diarrhoea | 17.6% | 8.8% |
| Constipation | 20.1% | 9.8% |
These were most often reported while the dose was being increased, and most were mild to moderate and short-lived; constipation tended to last longer. Stomach side effects led 3.4% of people to stop taking the tablets. The UK prescribing information says the overall safety profile matched the injection, except that indigestion was more common. (See nausea on a GLP-1 and sulphur burps and gas.)
The NHS says it is best not to drink alcohol while using semaglutide, because it can increase side effects such as feeling or being sick.
Other medicines
The US label says semaglutide delays stomach emptying and so can affect how other tablets are absorbed.
- Levothyroxine. In a drug interaction study, semaglutide tablets increased levothyroxine exposure by 33%. The UK prescribing information says thyroid levels should be monitored. Both medicines are usually taken on an empty stomach, so ask your pharmacist how to time them.
- Warfarin and similar medicines. The UK prescribing information recommends frequent INR checks when starting semaglutide.
- Insulin or a sulfonylurea. Your prescriber may need to lower the dose, because the combination can cause low blood sugar.
- Everything else. Take other oral medicines at least 30 minutes after the tablet, and tell your prescriber and pharmacist everything you take.
Missed doses, switching and safety
Missed a tablet? Skip it and take the next one the following day. Never take two.
Switching from the injection. The US label says people on the 2.4 mg injection can switch to the 25 mg tablet, starting one week after their last injection. Do this only with your prescriber.
Who should not take it. The US label carries a boxed warning because semaglutide caused thyroid C-cell tumours in rodents, and says Wegovy should not be used by anyone with a personal or family history of medullary thyroid cancer or with MEN 2. If you are planning a pregnancy, the US label says to stop at least 2 months beforehand, because semaglutide stays in the body for weeks.
Still hungry on the Wegovy pill?
The first months are the lowest doses. The UK prescribing information says steady levels take 4 to 5 weeks of daily tablets to reach, and the dose rises month by month. If you are hungry on 1.5 mg or 4 mg, that is not unusual. If you are hungry at 25 mg, check the routine first, because a rushed morning means less medicine. (See still hungry on a GLP-1.)
What to do with this
The calculator does not yet list the Wegovy pill by name, so it cannot estimate your appetite at each tablet dose. Your calorie target and protein floor do not depend on whether you take a tablet or an injection, though, and the calculator works both out from your weight, height, age and activity.
Sources
- Wegovy 25 mg tablets: Summary of Product Characteristics. electronic medicines compendium. emc
- US Food and Drug Administration. WEGOVY (semaglutide) injection and tablets: Highlights of Prescribing Information, 2026. FDA label
- Wharton S, et al. Oral Semaglutide at a Dose of 25 mg in Adults with Overweight or Obesity. N Engl J Med 2025. PubMed
- Wilding JPH, et al. Once-Weekly Semaglutide in Adults with Overweight or Obesity. N Engl J Med 2021. PubMed
- Mozaffarian D, et al. Nutritional priorities to support GLP-1 therapy for obesity: a joint advisory from the American College of Lifestyle Medicine, the American Society for Nutrition, the Obesity Medicine Association, and The Obesity Society. Obesity Pillars 2025. PubMed
- NHS. Semaglutide. nhs.uk
Medical disclaimer: Articles in the foodose research library are educational, not medical advice. Follow the instructions from your prescriber and the leaflet in your pack. See our full medical disclaimer.