What the label asks for
A reduced-calorie diet and increased physical activity
The label says the same thing twice, in the indication and in the administration instructions. Saxenda is given in combination with a reduced-calorie diet and increased physical activity, to reduce excess body weight and keep that weight off long term. So the diet is part of the treatment as the label describes it, not an optional add-on. What the label does not do is name particular foods, macros or gram targets. Neither will we.
What to prioritise
When your appetite is 50% of what it used to be, every bite has to earn its place. Here is the priority stack.
A reduced-calorie diet
Part of the treatmentThe label says to administer Saxenda in combination with a reduced-calorie diet and increased physical activity. It does not name a calorie number or a diet pattern, so the specifics come from you and your prescriber.
- Saxenda is indicated in combination with a reduced-calorie diet and increased physical activity
- The same instruction appears again under Important Administration Instructions
- No meal-timing rule: inject at any time of day, with or without food
- Adults: weight change is reviewed at 16 weeks against a 4% threshold
Fluids
Take precautions to avoid depletionSince the drug went on sale, the label reports cases of acute kidney injury, some needing dialysis. Most were in people who became dehydrated through nausea, vomiting or diarrhoea. The label says to advise patients to take precautions to avoid fluid depletion.
- Most reported kidney injury cases followed dehydration from stomach side effects
- Advise patients to take precautions to avoid fluid depletion
- Report persistent or extended nausea, vomiting and diarrhoea promptly
- Renal function is monitored in people with reactions that could deplete fluid
Habits that help vs habits that hurt
These patterns come up repeatedly in clinical guidance and community experience.
Prioritise these
- Pair Saxenda with a reduced-calorie diet and increased physical activity, as the label describes
- Keep drinking, especially on days with nausea, vomiting or diarrhoea
- Eat whenever suits you — the label sets no timing rule around the injection
- Report persistent or extended nausea, vomiting or diarrhoea to your prescriber
- If you take insulin or a sulfonylurea, monitor blood glucose as your prescriber advises
- Tell your care team about Saxenda before any planned surgery or sedation
Watch out for
- Assume the diet is optional — the label describes it as part of how Saxenda is used
- Push through days of vomiting or diarrhoea without fluids, given the kidney injury reports
- Wait before or after eating to inject — the label says timing does not matter
- Change an insulin or sulfonylurea dose yourself because you are eating less
- Ignore severe or persistent stomach symptoms — the label says to contact your provider
- Take another GLP-1 medicine alongside Saxenda
The dehydration trap
Fluid loss from stomach side effects is the risk the label names
Since liraglutide went on the market, the label reports cases of acute kidney injury in people treated with it. Some of those cases needed haemodialysis. It says the majority happened in patients who had gut reactions that led to dehydration — nausea, vomiting or diarrhoea. Its instructions are to inform patients of the risk, and to advise them to take precautions to avoid fluid depletion. It also says to instruct them to report promptly any signs or symptoms of kidney injury, and any nausea, vomiting or diarrhoea that persists or drags on. And it says kidney function should be monitored in patients reporting reactions that could leave them short of fluid, especially while the dose is being started and raised.
Sample meal ideas
These are not prescriptions — they are starting points. Adapt to your preferences, culture, and dietary needs.
- Eggs with wholegrain toast
- Plain yogurt with fruit
- Porridge made with milk
There is no waiting period around your injection — the label says Saxenda can be taken with or without food.
- A chicken or bean salad
- Vegetable soup with bread
- A tuna sandwich with salad
These are illustrations, not label instructions. The label asks for a reduced-calorie diet and leaves the shape of it to you.
- Fish with vegetables and rice
- A stir-fry with tofu or chicken
- Chilli with beans and a small portion of rice
If nausea makes evenings hard, that is worth raising with your prescriber rather than skipping meals.
- Water through the day
- More on days with vomiting or diarrhoea
- Anything that keeps you drinking regularly
This is the one the label is explicit about: take precautions to avoid fluid depletion.
Common questions
Written and maintained by one person · Built with agentic AI tools · Every number checked against the cited trial · Not medical advice
- Saxenda (liraglutide) prescribing information — Indications and Usage (1), Dosage and Administration (2.1), Warnings and Precautions (5.4, 5.6, 5.7, 5.9), Medication Guide View source ↗
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