Can You Lose Weight During IVF Treatment?
Can you lose weight during IVF treatment?
The safest answer is that active IVF treatment is not normally the time to begin an aggressive weight-loss plan. If you want or need to lose weight, it is generally better to make progress before your treatment cycle begins and then follow your clinic’s individual advice during medication, egg collection and embryo transfer.
Some women may be able to continue a moderate, established nutrition plan during parts of their IVF journey. Others may be advised to focus on maintaining their weight and supporting their body through treatment.
Your fertility clinic’s guidance should always take priority.
Should you lose weight before or during IVF?
If you have been given a BMI requirement for IVF, aim to discuss your weight-loss plan with the clinic as early as possible.
Ask them:
What BMI or weight do I need to reach?
When will my weight be checked?
Do I need to remain below the threshold for a certain period?
Should I continue losing weight once medication begins?
Does my exercise need to change during stimulation?
What should I do after egg collection or embryo transfer?
This will help you separate two different phases:
Before active IVF treatment
There may be time to follow a structured, moderate weight-loss plan using personalised nutrition and appropriate exercise.
During active IVF treatment
Your priority may need to shift towards eating regularly, staying appropriately active, managing side effects and following your clinic’s instructions.
Do not assume that advice given for the months before IVF will remain appropriate at every stage of treatment.
Why might weight change during IVF?
The number on the scales can change during IVF for reasons unrelated to body fat.
Medication, changes in activity, constipation, bloating and fluid retention may all affect your weight temporarily. Your weight could increase over a short period even if your usual food intake has not changed significantly.
This means IVF is not a useful time to judge your progress from individual daily weigh-ins.
If you choose to weigh yourself, look at the context rather than immediately reducing your food intake because the number has increased.
However, rapid weight gain alongside significant bloating, pain, nausea, vomiting, reduced urination, faintness or shortness of breath requires medical attention. These can be symptoms of ovarian hyperstimulation syndrome, known as OHSS.
The HFEA guidance on fertility-treatment risks advises contacting your clinic immediately if you experience concerning symptoms. Never worry that you are wasting the clinic’s time.
Can IVF medication make you gain body fat?
A short-term increase on the scales during IVF does not automatically mean you have gained body fat.
To gain a significant amount of body fat, you would need to consume more energy than your body uses over time. A sudden increase over a day or two is much more likely to reflect fluid, digestion or another temporary factor.
Your appetite and usual routine may change during treatment, so changes in food intake can happen. You may also move less because of discomfort, tiredness or clinic advice.
None of this means you have failed.
Your body is going through medical treatment. The goal is to respond appropriately rather than trying to compensate with very little food or excessive exercise.
Is a calorie deficit safe during IVF?
There is no universal calorie target or deficit that is safe for everyone during IVF.
Whether a calorie deficit is appropriate will depend on:
Your current weight and nutritional needs
Your health and medical history
The stage of your treatment
The medication you are taking
Your clinic’s instructions
Your relationship with food
Whether there is a possibility of pregnancy
If you have already been losing weight before treatment, ask your clinic whether you should continue with the same target, use a smaller deficit or move to maintenance.
Do not begin a very low-calorie diet during IVF unless it forms part of medically supervised care.
What should you eat during IVF treatment?
There is no single IVF diet that guarantees successful treatment.
A sensible approach is to focus on regular, varied meals that provide energy, protein, carbohydrates, fats, fruit and vegetables.
That might include:
Eggs, yoghurt or porridge at breakfast
Sandwiches, wraps, soup or jacket potatoes at lunch
Chicken, fish, beans, tofu or lean meat
Rice, pasta, bread, oats and potatoes
Fruit and vegetables
Dairy foods or suitable alternatives
Planned snacks when needed
Enough fluid throughout the day
You do not need to make every meal perfect.
IVF appointments, medication and emotions can make normal routines difficult. Keeping simple food available may be more valuable than creating an elaborate fertility meal plan.
Useful options might include:
Eggs on toast
Greek-style yoghurt and fruit
Overnight oats
A balanced smoothie
Soup and a sandwich
A tuna or bean jacket potato
A simple pasta dish
Chilli with rice
Frozen vegetables added to familiar meals
Normal food is still nutritious food.
For more ideas, read What to Eat While Trying to Conceive and Lose Weight.
Can you exercise during IVF?
Exercise advice can change during an IVF cycle.
Regular exercise may be encouraged while preparing for treatment, but your clinic may ask you to reduce or modify certain activities during ovarian stimulation and after procedures.
As the ovaries respond to medication, they can become enlarged and uncomfortable. High-impact exercise, heavy lifting, intense abdominal movement or activities involving twisting may not be appropriate at certain stages.
That does not necessarily mean you must stop moving completely.
Depending on your clinic’s advice and how you feel, options may include:
Gentle walking
Light mobility work
Relaxed stretching
Gentle yoga without deep twisting
Breathing or relaxation sessions
Ask your clinic which activities are suitable for you and when your normal training can resume.
Do not copy another woman’s IVF exercise plan. Her medication, response and treatment may be different from yours.
What about exercise after embryo transfer?
Follow the advice given by your clinic after embryo transfer.
You may be encouraged to continue with ordinary gentle movement, but this is not the time to start a demanding new fitness programme or use exercise to force faster weight loss.
If you receive a positive pregnancy test, your nutrition and exercise should be reviewed for pregnancy rather than continuing automatically with a pre-treatment weight-loss plan.
Should you weigh yourself during IVF?
You do not have to weigh yourself unless your clinic has asked you to.
For some women, weighing provides useful information. For others, seeing unpredictable changes caused by medication, bloating or fluid retention creates unnecessary anxiety.
If you do continue:
Avoid reacting to a single reading.
Do not cut food drastically after a temporary increase.
Consider weighing less frequently.
Monitor symptoms as well as the number.
Contact your clinic about rapid changes accompanied by concerning symptoms.
If weighing is affecting your mental health or relationship with food, it may be more helpful to pause and focus on regular meals and appropriate movement.
What if you have not reached your target weight before IVF?
Speak to your clinic rather than trying to hide the situation or resorting to an extreme last-minute diet.
Ask whether:
Your treatment date needs to change
There is flexibility in the clinic’s policy
Your referral can remain active
You can access dietetic or weight-management support
There are other treatment considerations you need to understand
An IVF deadline can make every week feel urgent, but a crash diet can create more physical and emotional stress without providing a sustainable solution.
If you still have time before treatment, read How to Lower Your BMI for IVF for help calculating your target and planning a realistic timescale.
Frequently asked questions
Can I actively lose weight during IVF injections?
Speak to your clinic before continuing or starting an intentional calorie deficit during ovarian stimulation. Your nutrition and exercise may need to be adapted as your ovaries respond to medication.
Will IVF make me gain weight?
Some women experience temporary scale increases caused by bloating, fluid retention, constipation or changes in activity and appetite. A higher number does not automatically mean body-fat gain.
Is rapid weight gain during IVF normal?
Rapid weight gain combined with pain, significant bloating, nausea, vomiting, shortness of breath, faintness or reduced urination can be a sign of OHSS. Contact your clinic immediately if you experience these symptoms.
Can I diet after embryo transfer?
Do not begin an aggressive weight-loss diet after embryo transfer. Follow your clinic’s instructions and seek individual advice, particularly because pregnancy may occur.
Can I exercise during ovarian stimulation?
Your clinic may advise reducing high-impact, strenuous or twisting movements as your ovaries enlarge. Ask your treatment team which activities are suitable for your stage of treatment.
Should I continue counting calories during IVF?
You may be able to continue tracking as a way of maintaining structure, but the calorie target itself may need to change. Tracking should not push you towards severe restriction or cause additional distress.
Can I use weight-loss injections during IVF?
Weight-loss medicines have specific pregnancy and treatment guidance. Speak to your prescriber and fertility clinic well before your IVF cycle. Do not use or stop prescribed medication without medical advice.
Your plan can change without your progress disappearing
Moving from weight loss to maintenance during IVF does not mean that you have given up.
Sometimes the most appropriate decision is to hold steady, nourish yourself and adapt your exercise while your body goes through treatment.
You can return to longer-term weight-management goals when it is medically appropriate. The habits you built before IVF have not disappeared simply because your immediate priority has changed.
Preparing for IVF and unsure where to begin?
If your treatment has not started and you want support with weight loss before IVF, the Baby Blueprint combines personalised nutrition, adaptable movement and regular accountability.
Your plan is built around your starting point, clinic requirements and treatment timeline. It is not an extreme diet or a generic “eat less and move more” programme.
Apply for personalised weight-loss support before IVF
Or begin with my free TTC Smoothie Guide for simple, balanced breakfast ideas:
Download the free TTC Smoothie Guide
This article provides general educational information and is not a substitute for advice from your fertility clinic, GP or another suitably qualified healthcare professional. Always follow your clinic’s instructions during treatment and contact it promptly if you develop concerning symptoms.
