Starting IVF is a big emotional and physical step. While you cannot control every part of the process, you can control how you look after your body. One of the most powerful tools you have is what you eat and drink.
An IVF diet is not a strict meal plan or magic quick fix. It is a way of eating that supports hormone balance, egg and sperm quality, a healthy uterine lining and your overall wellbeing. Think of it as building the best possible environment for treatment to work.
Below we look at what IVF is, how nutrition fits into the picture, and which foods can help support fertility treatments before and during IVF.
What is IVF and why does diet matter?
In vitro fertilisation (IVF) is a fertility treatment where eggs are stimulated, collected from the ovaries, fertilised with sperm in a lab and then an embryo is transferred back into the uterus.
Every step of that journey relies on your body:
- Hormones need to be in balance for stimulation and ovulation.
- Eggs and sperm need healthy cells and good DNA.
- The uterine lining needs to be receptive for implantation.
- Your body needs energy and resilience to cope with medications and stress.
A supportive IVF diet can help by:
- Providing the nutrients needed for hormone production and cell repair.
- Reducing inflammation in the body, which can affect fertility.
- Stabilising blood sugar to help with conditions such as insulin resistance or PCOS.
- Supporting a healthy weight, which is linked to better IVF outcomes.
It does not guarantee success, but it stacks the odds a little more in your favour.
Key principles of a healthy IVF diet
Rather than chasing superfoods, it helps to follow a few simple principles:
- Focus on whole, minimally processed foods.
- Prioritise plant-rich meals with plenty of vegetables and fruit.
- Choose lean proteins and healthy fats.
- Prefer low glycaemic index carbohydrates such as whole grains.
- Limit sugar, processed foods and trans fats.
A pattern similar to the Mediterranean or anti-inflammatory style of eating has been linked with improved fertility outcomes in some studies, especially in women under 35.
Fertility-friendly foods to include in your IVF diet before and during
1. Leafy greens and colourful vegetables
Spinach, kale, broccoli, peas and other dark greens are rich in folate, iron, magnesium and antioxidants. These nutrients help with:
- Supporting egg and sperm DNA.
- Building a healthy uterine lining.
- Producing red blood cells and hormones.
Aim for at least one big serving of greens every day plus a variety of colourful vegetables such as carrots, peppers and tomatoes.
Easy ideas:
- Add baby spinach to omelettes.
- Have a big salad with mixed greens and chickpeas at lunch.
- Roast a tray of mixed vegetables to use over two or three days.
2. Healthy fats and omega-3s
Healthy fats are crucial for hormone production and cell membranes. Omega-3 fats in particular can help reduce inflammation and may support egg and embryo quality.
Good choices for an IVF diet include:
- Oily fish such as salmon, sardines and mackerel.
- Avocado.
- Extra virgin olive oil.
- Nuts such as walnuts and almonds.
- Seeds such as chia, flax and pumpkin seeds.
Try to include a source of healthy fat at most meals, for example olive oil on salads, avocado on toast or a sprinkle of seeds over yoghurt.
3. Quality protein
Protein provides the building blocks for hormones, eggs, sperm and the uterine lining. Many fertility-focused diets encourage a mix of:
- Lean poultry.
- Fish.
- Eggs.
- Legumes such as lentils, beans and chickpeas.
- Tofu or tempeh for those who prefer plant-based options.
Aim to include protein at every meal to keep blood sugar stable and support satiety.
4. Whole grains and low GI carbohydrates
Swapping refined carbohydrates for whole grains helps keep energy and blood sugar steady, which is important for hormonal balance and conditions such as PCOS.
Helpful options include:
- Brown or wild rice.
- Oats.
- Quinoa.
- Whole wheat or seeded bread.
- Barley and bulgur.
Try using whole grains as the base of bowls, salads and side dishes.
5. Fruit and antioxidant rich foods
Antioxidants help protect eggs, sperm and reproductive tissues from oxidative stress. Berries, citrus fruits and other brightly coloured fruit are particularly rich sources.
Examples:
- Blueberries, strawberries and raspberries.
- Oranges, naartjies and grapefruit.
- Kiwi, pomegranate and grapes.
Enjoy one or two portions of fruit a day as part of your IVF diet, rather than fruit juices which can spike blood sugar.
6. Dairy or calcium rich alternatives
Full fat or moderate fat dairy products such as yoghurt, milk and cheese provide calcium, vitamin D and protein, all of which support bone health and hormone function. Some research suggests that full fat dairy may be more supportive for fertility than low fat versions in certain women.
If you do not tolerate dairy, choose calcium and vitamin D fortified plant milks and include other calcium sources such as sesame seeds, almonds and leafy greens.
7. Nuts, seeds and legumes
Nuts, seeds and legumes tick many boxes at once: they offer plant protein, fibre, healthy fats and key micronutrients such as zinc, selenium and folate.
These nutrients support:
- Sperm production and motility.
- Ovulation.
- Egg quality and embryo development.
A small handful of nuts, a spoon of seeds or a serving of beans daily can make a big difference over time.
Drinks and hydration on an IVF diet
Hydration is often overlooked, yet it is vital during fertility treatment.
Better drink choices include:
- Plenty of still or sparkling water.
- Herbal teas such as rooibos, ginger or peppermint.
- Occasional milk or fortified plant milks.
Moderate caffeine intake is usually considered safe for many people, but very high caffeine intake has been linked with reduced fertility and pregnancy complications. Many clinics suggest limiting yourself to one small coffee or tea a day, or switching to decaf where possible.
Alcohol is best avoided or kept for rare occasions while you are actively preparing for IVF and especially once treatment has started.
Foods and habits to limit before IVF and embryo transfer
Just as some foods support your IVF diet, others may work against it. Common recommendations from fertility specialists include:
- Reducing sugary drinks, sweets and pastries.
- Limiting highly processed foods such as fast food and packaged snacks.
- Cutting back on processed meats such as bacon and polony.
- Avoiding trans fats and very fried foods.
- Limiting alcohol and avoiding smoking.
- Being cautious with very high caffeine intake.
Before embryo transfer, many clinics also advise avoiding foods that can upset the gut such as very spicy, greasy or unfamiliar meals, simply to keep you feeling comfortable.
When should you start focusing on your IVF diet?
Ideally, start working on your IVF diet three months before treatment. This lines up with the time it takes for eggs and sperm to develop and mature.
If you do not have that much time, do not panic. Even 30 days of healthier eating can support:
- Better energy levels.
- A more stable mood.
- Improved digestion.
- More balanced blood sugar and hormones.
The goal is progress, not perfection. Small consistent changes will always beat a brief, extreme plan.
Practical tips to make an IVF diet realistic
- Build your plate around vegetables first, then add protein and whole grains.
- Plan simple, repeatable meals such as bowls, stir fries and tray bakes.
- Keep healthy snacks on hand: nuts, fruit, hummus and veggie sticks.
- Batch cook on weekends to reduce stress on busy treatment days.
- Be kind to yourself if you have an off day and simply get back on track at the next meal.
If you are unsure about your specific needs, a registered dietitian with fertility experience can personalise this general IVF diet pattern for your medical history, weight, cultural preferences and lifestyle.
FAQs: IVF diet
What should I eat during IVF?
During IVF focus on a balanced IVF diet built around whole foods. Include:
- Plenty of vegetables and some fruit for vitamins, minerals and antioxidants.
- Lean proteins such as chicken, fish, eggs, beans and lentils.
- Healthy fats from olive oil, avocado, nuts and seeds.
- Whole grains such as oats, brown rice and quinoa.
Limit sugar, highly processed foods, excessive caffeine and alcohol. This combination helps support hormone balance, egg and sperm quality and your overall energy.
What should I do 30 days before IVF?
Thirty days before IVF is a great time to tighten up your routine:
- Shift firmly to a fertility friendly IVF diet based on whole foods.
- Cut back on alcohol and try to stop smoking if you smoke.
- Reduce caffeine to a moderate level.
- Start a gentle movement routine if your doctor is happy with it, such as walking or light yoga.
- Prioritise sleep and stress management, including relaxation techniques.
If your clinic has given you supplements such as folic acid or vitamin D, make sure you are taking them consistently as prescribed.
What is the best drink for IVF?
Plain water is the best drink for IVF because it keeps you hydrated without extra sugar or additives. You can add slices of lemon, cucumber or fruit if that makes it easier to drink enough.
Herbal teas such as rooibos, chamomile or peppermint can also fit into an IVF diet. Try to limit very sugary drinks, energy drinks and high caffeine beverages. Once treatment starts, it is usually best to avoid alcohol altogether unless your doctor advises otherwise.
What to avoid before IVF transfer?
In the days leading up to embryo transfer, it is sensible to avoid:
- Excess alcohol and smoking.
- Very high caffeine intake.
- Rich, greasy or heavily processed foods that may upset your stomach.
- Excess sugar and refined carbohydrates.
- New or unusual foods that might cause bloating or discomfort.
Stick to the same supportive IVF diet pattern you have been following, keep your meals light to moderate in size and focus on feeling calm, nourished and well rested as you go into your transfer.
