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Written by the Fertility Team at Mannat Fertility Clinic .
Preparing for IVF usually brings with it the wish to do everything possible for the cycle. Egg quality sits at the centre of that. Healthier eggs are more likely to fertilise, more likely to develop into strong embryos, more likely to implant. No approach reverses age and none creates new eggs. The months ahead of treatment are still a genuine window. Eggs retrieved in a cycle have been maturing for roughly three months, so diet and supplements and habits adopted now can support that final stage of development.
Why Does Egg Quality Matter So Much for IVF?
Every egg carries the genetic material and the cellular energy an embryo needs in order to grow. That energy comes from mitochondria, the small powerhouses inside each cell. Mitochondrial function declines naturally as eggs age. Poorer energy production and raised oxidative stress can affect how well an egg matures and how well it fertilises.
The pre-IVF period is worth using for this reason. Eggs take around 90 days to mature before retrieval. Changes made roughly three months ahead have the best chance of influencing the eggs collected in a cycle.
What Should You Eat to Support Egg Quality?
There is no single fertility food. What does the work is the overall pattern, one rich in antioxidants and in healthy fats, because that is what shapes the cellular environment an egg spends its final months maturing inside, and a Mediterranean-style approach is the one we find ourselves recommending most often, largely for its anti-inflammatory profile.
Foods worth prioritising include:
- Leafy greens, berries, and colourful vegetables for antioxidants
- Oily fish, nuts, and olive oil for omega-3 and healthy fats
- Whole grains and legumes for steady blood sugar
- Lean proteins and, if tolerated, full-fat dairy in moderation
- Plenty of water to stay well hydrated
The other half of it, what comes off the plate rather than what goes on, matters every bit as much, and that means the heavily processed foods, the excess sugar, the trans fats, the high alcohol intake, all of which pull against what you are trying to do here.
Which Supplements Have Evidence Behind Them?
Supplements support the work. They do not perform miracles, and only a handful of them carry research worth the name. Coenzyme Q10, CoQ10, is the one that has been studied hardest, and it earns its place by supporting mitochondrial energy production and by helping counter oxidative stress.
A systematic review and meta-analysis found CoQ10 supplementation associated with improved oocyte quality and with better outcomes among women going through IVF, and the signal came through strongest in women over 35 and in those with diminished ovarian reserve. Research points as well to the part CoQ10 plays in reducing oxidative stress and supporting ovarian function.
Commonly discussed supplements include:
| Supplement | Typical Role |
| CoQ10 (often ubiquinol) | Mitochondrial energy, antioxidant support |
| Folate / prenatal vitamin | Foundational preconception health |
| Vitamin D | Corrects deficiency linked to poorer outcomes |
| Omega-3 fatty acids | Anti-inflammatory support |
Dosing, timing, the interactions between one thing and another, all of that shifts from one woman to the next, and some of these supplements will act on blood thinners or on blood pressure medication, which is precisely why we ask patients not to self-prescribe. Bring the regimen to your specialist and have it confirmed before you start any of it.
How Do Lifestyle Habits Influence Your Eggs?
An egg matures inside an environment, and that environment is built out of ordinary daily habits rather than dramatic gestures, which patients tend to find reassuring. Small and consistent beats large and brief. Several of these sit squarely within your own control.
- Stop smoking: which is tied firmly to reduced egg quality and to lower IVF success, and it is the one we push hardest on
- Moderate the alcohol and the caffeine: keeping both low in the run-up, a sensible precaution rather than a hard prohibition
- Move regularly: since moderate exercise supports circulation and a healthy weight, though there is no prize for overdoing it
- Aim for a healthy weight: because sitting significantly under or over that range will act on hormonal balance
- Protect your sleep: consistent and decent in quality, which is what the hormones governing reproduction depend on
Can Reducing Stress Actually Help?
Stress and fertility sit in a complicated relationship with one another, and the last thing we want is to hand a woman one more thing to feel guilty about in a process that is already carrying quite enough of that. Stress on its own does not cause infertility. Having said that, stress that runs on chronically will disrupt sleep and appetite and the rhythm of your hormones, so managing it does genuine good through a demanding stretch.
What helps tends to be gentle and sustainable, so mindfulness, yoga, counselling, acupuncture, or nothing more elaborate than protected time in which to rest. The point of it is support. It is not another item on the checklist to feel anxious about.
When Should You Start and What Are Realistic Expectations?
Because that maturation window runs to roughly three months, the ideal moment to begin the diet and the supplements and the lifestyle changes is somewhere around 90 days ahead of a cycle, and starting later than that remains a great deal better than never starting at all. Expectations, though, are worth holding honestly. What these steps do is optimise the environment an egg develops in. They will not change your age, and they cannot promise you a pregnancy.
Improving egg quality ahead of IVF comes down to stacking small advantages, the evidence-informed ones, so nourishing food and well-chosen supplements and steady habits, all of it guided by the specialist who knows your case. Done together, they mean walking into your cycle having given those eggs the best foundation available to them.
This article is for general educational purposes and is not a substitute for personalised medical advice from your fertility specialist.
