IVF Preparation: How to Optimise Your Body Before Starting IVF Treatment

Starting IVF is one of the most significant decisions a couple can make on their fertility journey. While modern reproductive medicine has made extraordinary advances, the success of IVF treatment is not determined by medical intervention alone. The months leading up to your first IVF cycle are a critical window — an opportunity to optimise your body, enhance egg and sperm quality, and set the stage for the best possible outcome.

Research consistently shows that pre-IVF preparation can meaningfully impact results. A well-nourished body, balanced hormones, reduced stress levels, and targeted supplementation all contribute to better egg retrieval numbers, healthier embryos, and improved implantation rates. In Hong Kong, where couples often face unique lifestyle pressures including long working hours, high-stress environments, and dietary challenges, proactive preparation becomes even more essential.

This guide covers everything you need to know about preparing for IVF — from nutrition and supplements to mental health, lifestyle changes, and what to expect from the process itself. Whether your first cycle is weeks away or several months out, the steps outlined here can make a real difference.

Understanding the IVF Timeline and Why Preparation Matters

Before diving into specific recommendations, it helps to understand why the preparation period is so important from a biological standpoint. Egg development (folliculogenesis) takes approximately 90 days from the time a follicle is recruited to the point of ovulation. Similarly, sperm cells take around 74 days to fully mature (spermatogenesis). This means that the lifestyle choices, dietary habits, and supplementation you adopt today will directly influence the quality of the eggs and sperm used in your IVF cycle — even if that cycle is three months away.

Fertility specialists typically recommend beginning IVF preparation at least three months before your anticipated treatment start date. This gives you enough time to:

• Complete full fertility investigations (AMH, antral follicle count, semen analysis)
• Optimise nutritional status and address any deficiencies
• Implement lifestyle changes that support reproductive health
• Stabilise body weight if necessary
• Build mental and emotional resilience
• Discuss a personalised supplement protocol with your fertility specialist

A 2019 systematic review published in Human Reproduction Update found that pre-conception nutrition and supplement use were associated with better IVF outcomes, including higher fertilisation rates and improved embryo quality. Starting early is not just advisable — it is supported by evidence.

Nutrition for IVF: What to Eat (and Avoid) Before Treatment

Diet is one of the most modifiable factors influencing fertility and IVF success. The Mediterranean diet has emerged as the most extensively studied dietary pattern in the context of assisted reproduction, and the evidence is compelling.

Embrace the Mediterranean Diet Approach

A landmark study published in Human Reproduction (2018) found that women who followed a Mediterranean-style diet in the six months before IVF had a 65–68% higher chance of achieving a clinical pregnancy and live birth compared to those who did not. Key components of this dietary pattern include:

• Abundant vegetables and fruits: Rich in antioxidants, vitamins C and E, beta-carotene, and folate — all critical for protecting egg quality from oxidative stress.
• Whole grains over refined carbohydrates: Stabilises blood sugar and insulin levels, which is particularly beneficial for women with PCOS or insulin resistance.
• Healthy fats: Olive oil, avocado, and nuts provide monounsaturated fats and omega-3 fatty acids that support hormone production and reduce inflammation.
• Lean proteins and legumes: Plant-based proteins from lentils, chickpeas, and beans appear to support better fertility outcomes compared to high red meat consumption.
• Fatty fish: Salmon, sardines, and mackerel provide DHA (docosahexaenoic acid), an omega-3 fatty acid essential for egg cell membrane health and embryo development.
• Dairy in moderation: Full-fat dairy appears to have neutral or positive effects on fertility compared to low-fat dairy products.

Foods to Limit Before IVF

Just as important as what you eat is what you reduce or eliminate. Research highlights the following as potentially detrimental to IVF outcomes:

• Ultra-processed foods: High in trans fats, refined sugars, and artificial additives, these foods promote inflammation and oxidative stress.
• Excessive sugar and refined carbohydrates: Blood sugar spikes can impair oocyte (egg cell) development and disrupt hormonal signalling.
• Alcohol: Even moderate alcohol consumption has been associated with reduced IVF success rates. A Harvard School of Public Health study found that women who drank four or more alcoholic drinks per week had a 16% lower chance of live birth per IVF cycle.
• High-mercury fish: Swordfish, shark, king mackerel, and tilefish should be avoided due to mercury's toxic effects on egg and embryo quality.
• Excessive caffeine: Limit to no more than 200mg per day (roughly one cup of coffee). Higher caffeine intake has been linked to increased miscarriage risk.
• Soy isoflavones in excess: While moderate soy consumption appears safe, very high intakes may interfere with oestrogen signalling in some women.

Hydration and IVF

Adequate hydration is often overlooked in fertility discussions, yet it plays a crucial role in follicular fluid quality and endometrial health. Aim for 8–10 glasses of water per day. During IVF stimulation, good hydration also helps reduce the risk of ovarian hyperstimulation syndrome (OHSS).

Key Supplements to Take Before IVF

Even with an optimised diet, certain nutrients are challenging to obtain in therapeutic quantities from food alone. Targeted supplementation in the pre-IVF period can address deficiencies and provide additional support for egg quality, sperm health, and overall reproductive function.

Folic Acid (or Folate)

Folic acid is the cornerstone of pre-conception supplementation. The recommended dose for women undergoing IVF is typically 400–800mcg daily, though women with MTHFR gene variants may be advised to take methylfolate (the activated form) for better absorption. Folate is critical for DNA synthesis, cell division, and neural tube development in early pregnancy.

Coenzyme Q10 (CoQ10)

CoQ10 is perhaps the most research-backed supplement for IVF preparation in both women and men. As a potent mitochondrial antioxidant, CoQ10 supports the energy production required by developing eggs and sperm cells.

For women, CoQ10 supplementation (typically 400–600mg daily as ubiquinol for optimal absorption) has been shown to improve egg quality and embryo development, particularly in women of advanced maternal age. A 2018 trial published in the Journal of Assisted Reproduction and Genetics found that pre-treatment with CoQ10 significantly improved ovarian response and oocyte quality in poor responders undergoing IVF.

For men, a meta-analysis published in Reproductive BioMedicine Online demonstrated that CoQ10 supplementation significantly improved sperm concentration, motility, and morphology — all critical parameters for IVF success.

Vitamin D

Vitamin D deficiency is extremely common in Hong Kong despite the city's sunny climate, largely due to indoor lifestyles and sunscreen use. This is significant because vitamin D plays a key role in follicle development, egg quality, and embryo implantation. Studies have found that women with adequate vitamin D levels (≥30 ng/mL) have significantly higher clinical pregnancy rates and live birth rates after IVF. Have your levels tested and supplement accordingly — most adults require 1,000–2,000 IU daily, though some need much higher doses.

Omega-3 Fatty Acids (DHA/EPA)

Omega-3 fatty acids, particularly DHA, are essential components of egg cell membranes and play a role in reducing the inflammatory environment that can impair implantation. Studies suggest that omega-3 supplementation may improve egg quality and embryo development. A daily dose of 1,000–2,000mg of combined EPA/DHA from a high-quality fish oil or algae-based supplement is recommended.

Myo-Inositol

For women with PCOS or poor ovarian response, myo-inositol (typically 2–4g daily, often combined with D-chiro-inositol in a 40:1 ratio) has shown remarkable benefits. Research published in the International Journal of Endocrinology demonstrated that myo-inositol improved oocyte quality, reduced the amount of FSH required for stimulation, and increased the number of mature oocytes retrieved during IVF in women with PCOS.

Antioxidants: Vitamin C and Vitamin E

Oxidative stress — an imbalance between free radicals and the body's antioxidant defences — is one of the leading causes of egg and sperm DNA damage. Vitamins C (500–1,000mg daily) and E (400 IU daily) work synergistically to neutralise free radicals and protect reproductive cells. Combined antioxidant supplementation has been shown to improve fertilisation rates and embryo quality in IVF cycles.

Zinc and Selenium

Zinc is essential for egg maturation, fertilisation, and early embryo development. Selenium supports thyroid function (disruption of which is linked to IVF failure) and acts as a co-factor for antioxidant enzymes. Both micronutrients are often included in comprehensive prenatal and fertility supplement formulations.

For Men: The Male Fertility Supplement Stack

Sperm quality is a critical determinant of IVF success that is sometimes overlooked. In approximately 40–50% of infertility cases, male factor issues are a contributing cause. The following supplements have the strongest evidence base for improving sperm parameters before IVF:

• CoQ10 (200–600mg daily): Improves sperm motility and reduces DNA fragmentation
• Zinc (25–40mg daily): Essential for testosterone synthesis and sperm development
• Selenium (100–200mcg daily): Supports sperm motility and reduces oxidative damage
• Vitamin C (1,000mg daily): Protects sperm DNA from oxidative damage
• L-Carnitine (2–3g daily): Supports sperm energy metabolism and motility
• Lycopene (10mg daily): A carotenoid antioxidant linked to improved sperm concentration and morphology
• Folic acid (400–800mcg daily): Reduces sperm DNA strand breaks

Lifestyle Changes That Make a Real Difference

Beyond diet and supplementation, several lifestyle factors have a significant and measurable impact on IVF outcomes. The good news is that these are all within your control.

Achieve a Healthy Body Weight

Body weight is one of the most influential — and modifiable — determinants of IVF success. Both underweight and overweight BMI are associated with poorer outcomes:

• Overweight/Obese (BMI >25): Associated with reduced ovarian response, lower oocyte quality, higher rates of cycle cancellation, and reduced live birth rates. Adipose tissue produces excess oestrogen, which disrupts the hypothalamic-pituitary-ovarian (HPO) axis and impairs follicular development.
• Underweight (BMI <18.5): Associated with poor ovarian reserve, anovulation (absence of ovulation), and inadequate uterine lining development.

Even modest weight loss of 5–10% of body weight in overweight individuals has been shown to significantly improve hormonal profiles, ovarian response, and IVF success rates. Work with your fertility specialist and a registered dietitian to set realistic, sustainable weight goals.

Exercise: Finding the Right Balance

Regular moderate exercise improves insulin sensitivity, reduces inflammation, supports healthy body weight, and promotes psychological wellbeing — all beneficial for IVF preparation. Aim for 30 minutes of moderate-intensity exercise (brisk walking, swimming, cycling, yoga) on most days of the week.

However, be cautious about high-intensity exercise during IVF stimulation. Very vigorous exercise (marathon training, CrossFit at high intensity) has been associated with reduced IVF success in some studies, possibly due to oxidative stress and disruption of hormonal signalling. During your stimulation phase, scale back to gentle movement.

Eliminate Smoking and Vaping

Smoking is one of the most damaging things you can do for fertility — male or female. In women, tobacco smoke accelerates follicle loss, reduces ovarian reserve, damages egg DNA, and is associated with significantly lower IVF success rates. Women who smoke require higher doses of gonadotrophins during stimulation and have lower fertilisation, implantation, and pregnancy rates than non-smokers.

In men, smoking damages sperm DNA, reduces sperm count and motility, and increases the percentage of abnormal sperm. Secondhand smoke exposure also impairs fertility.

Vaping and e-cigarette use are not safe alternatives — nicotine has direct toxic effects on the ovaries and testes, and the long-term reproductive effects of vaping chemicals are still being studied. Stop smoking (and vaping) completely, ideally at least three months before IVF.

Limit Alcohol and Caffeine

As noted in the nutrition section, both alcohol and excessive caffeine are associated with reduced IVF success. The safest approach is to eliminate alcohol entirely during the preparation and treatment phases. Limit caffeine to one cup of coffee or two cups of tea per day.

Optimise Sleep

Sleep is when much of the body's cellular repair and hormonal regulation takes place. Melatonin — the sleep hormone — is also produced in follicular fluid and has been shown to protect developing eggs from oxidative damage. Chronic sleep deprivation disrupts the HPO axis, impairs cortisol regulation, and is associated with poorer reproductive outcomes.

Aim for 7–9 hours of quality sleep per night. Establish a consistent sleep schedule, reduce blue light exposure in the evenings, and keep your bedroom cool and dark.

Reduce Exposure to Endocrine Disruptors

Environmental chemicals known as endocrine-disrupting chemicals (EDCs) can interfere with hormone signalling and have been linked to reduced fertility and poorer IVF outcomes. Common EDCs include:

• BPA and phthalates: Found in plastic bottles, food packaging, and personal care products. Switch to glass or stainless steel water bottles and choose BPA-free products.
• Parabens: Preservatives in cosmetics and skincare. Check ingredient labels.
• Pesticides: Wash fruits and vegetables thoroughly; choose organic where possible for the most heavily sprayed crops.
• Non-stick cookware (PFAS): Use ceramic or cast-iron pans instead of non-stick teflon-coated pans.

Mental Health and Emotional Wellbeing During IVF Preparation

The psychological burden of infertility and IVF treatment should not be underestimated. Studies show that the stress and anxiety associated with IVF can be comparable to that experienced with serious illness diagnoses. While the direct causal relationship between psychological stress and IVF outcomes remains debated, there is clear evidence that mental health support improves quality of life, treatment adherence, and resilience — all of which matter enormously.

Acknowledge the Emotional Weight

It is completely normal to feel anxious, sad, frustrated, or overwhelmed when facing fertility challenges. Acknowledge these feelings rather than suppressing them. Couples who openly communicate about their emotional experiences tend to navigate the IVF journey with greater cohesion and resilience.

Mind-Body Practices

Mindfulness-based stress reduction (MBSR), yoga, acupuncture, and relaxation techniques have all been studied in the context of IVF. While evidence for direct effects on pregnancy rates is mixed, these practices consistently demonstrate:

• Reduced cortisol levels and physiological stress response
• Improved psychological wellbeing and quality of life
• Better coping with the uncertainties of treatment
• Reduced rates of depression and anxiety during the two-week wait

A meta-analysis published in Fertility and Sterility found that psychological intervention during IVF was associated with significantly higher pregnancy rates, suggesting that emotional support is not merely ancillary — it may be clinically meaningful.

Seek Professional Support

Many fertility clinics in Hong Kong offer psychological counselling as part of their IVF programmes. If yours doesn't, consider seeking a therapist with experience in fertility-related issues. Cognitive-behavioural therapy (CBT) has shown particular promise for managing IVF-related anxiety and improving coping strategies.

Build Your Support Network

Decide in advance who you will share your IVF journey with. Some couples prefer to keep treatment private, while others find strength in openness. There are also active fertility support communities in Hong Kong — both online and in-person — where couples can connect with others who understand what they're going through.

Improving Egg Quality Before IVF: A Deeper Look

Egg quality is arguably the single most important factor in IVF success, especially for women over 35. The term "egg quality" refers to the genetic integrity, mitochondrial function, and developmental competence of oocytes. Here is a summary of the most evidence-based strategies:

• CoQ10 supplementation (ubiquinol form): Supports mitochondrial function in eggs, directly influencing their energy capacity for fertilisation and early development
• DHEA (for low responders, under medical supervision): Pre-treatment with DHEA (75mg daily for 6–12 weeks) has shown benefit for women with diminished ovarian reserve, increasing oocyte yield and reducing aneuploidy (chromosomal errors) in some studies
• Melatonin: Potent antioxidant in follicular fluid; some protocols use melatonin (3mg at night) in the weeks before egg retrieval to protect oocyte DNA
• Reducing oxidative stress: Comprehensive antioxidant protocol including vitamins C, E, and selenium
• Avoiding heat exposure: Prolonged hot baths, saunas, and hot tubs can increase follicular temperature and impair oocyte development
• Thyroid optimisation: Thyroid dysfunction (even subclinical hypothyroidism) is associated with poorer egg quality and higher miscarriage rates. Ensure TSH is tested and optimised before IVF — most fertility specialists aim for TSH <2.5 mIU/L

Sperm Quality and IVF: The Often-Overlooked Half

While much attention in IVF preparation focuses on egg quality, sperm quality is equally important — particularly in the era of ICSI (intracytoplasmic sperm injection), where a single sperm is selected for injection into each egg. Sperm DNA fragmentation, in particular, is a key parameter that can impair fertilisation, embryo development, and implantation even when standard semen analysis parameters appear normal.

Sperm DNA Fragmentation Testing

The standard semen analysis measures count, motility, and morphology, but it does not assess the integrity of sperm DNA. High DNA fragmentation rates (>25% by TUNEL assay or >15% by DFI) are associated with reduced fertilisation rates, poor blastocyst development, and higher miscarriage rates in IVF/ICSI cycles.

If you have unexplained infertility, recurrent IVF failure, or recurrent miscarriage, ask your specialist about sperm DNA fragmentation testing. Lifestyle measures and targeted supplementation (particularly CoQ10, vitamins C and E, and zinc) can meaningfully reduce fragmentation indices over 3–6 months.

Heat and Scrotal Temperature

Sperm production is temperature-sensitive — the testes are designed to be 2–4°C cooler than body temperature. Prolonged exposure to heat (hot baths, laptop heat on the lap, tight underwear, cycling for long periods, occupational heat exposure) can impair spermatogenesis. Switch to loose-fitting boxer shorts and avoid sustained heat exposure in the months before IVF.

What to Expect from the IVF Process

For couples embarking on their first IVF cycle, understanding what the process involves can reduce anxiety and help with planning. While protocols vary between clinics, a typical IVF cycle involves:

1. Initial investigations (1–2 months before): AMH, antral follicle count (AFC), baseline hormone panel, thyroid function, semen analysis, uterine cavity assessment (saline sonography or hysteroscopy)
2. Downregulation (if applicable): Some protocols use GnRH agonists for 2–4 weeks before stimulation to synchronise follicle development
3. Ovarian stimulation (10–14 days): Daily injectable gonadotrophins (FSH/LH) to stimulate multiple follicle growth, monitored by transvaginal ultrasound and blood tests every 2–3 days
4. Trigger injection: When follicles reach the appropriate size (~18–20mm), an hCG or GnRH agonist trigger shot is given to mature the eggs
5. Egg retrieval (day of trigger + 36 hours): A brief surgical procedure under sedation, typically 20–30 minutes, to aspirate follicles transvaginally
6. Fertilisation and embryo culture: Retrieved eggs are fertilised (by IVF or ICSI) and cultured for 3–5 days to blastocyst stage
7. Embryo transfer: One or two embryos are transferred to the uterus; remaining good-quality embryos may be frozen
8. Two-week wait: The 10–14 day period before a pregnancy test

Understanding this timeline helps you plan work schedules, emotional support, and any travel during treatment. Many women in Hong Kong continue working during stimulation with minor adjustments; however, the day of egg retrieval and the days immediately following typically require rest.

Working With Your Fertility Specialist: Key Questions to Ask

Your preparation period is also the ideal time to build a collaborative relationship with your fertility team. Consider asking the following:

• What protocol do you recommend for my ovarian reserve and fertility profile?
• Should I have a mock transfer or uterine cavity assessment before treatment?
• Do you recommend preimplantation genetic testing (PGT-A) for my case?
• What supplements do you recommend, and are there any I should avoid?
• What BMI or weight range would optimise my response?
• Should my partner have a sperm DNA fragmentation test?
• What is your freeze-all vs fresh transfer policy?
• What does your clinic's live birth rate look like for my age group?

Frequently Asked Questions About IVF Preparation

Q: How many months before IVF should I start preparing?
A: Ideally, begin your preparation 3–6 months before your anticipated IVF start date. This allows adequate time for dietary changes, supplement protocols (which take 90+ days to fully impact egg and sperm quality), weight optimisation, and comprehensive fertility investigations.

Q: Is it safe to take supplements before IVF without telling my doctor?
A: Always inform your fertility specialist about any supplements you are taking. Some supplements (e.g., high-dose vitamin A, herbal supplements like St John's Wort) can interact with fertility medications or affect hormone levels. Most evidence-based fertility supplements are safe, but personalised medical advice is important.

Q: Can acupuncture improve IVF success rates?
A: Evidence is mixed. Some studies suggest acupuncture performed on the day of embryo transfer may modestly improve pregnancy rates, while others show no benefit. However, acupuncture is widely used for stress reduction and general wellbeing during IVF preparation, which is a valid reason to consider it regardless of direct effects on pregnancy rates.

Q: Does stress reduce the chances of IVF success?
A: The direct causal relationship between psychological stress and IVF outcomes is not definitively established. However, high cortisol and chronic stress can disrupt the HPO axis and impair reproductive function. More importantly, managing stress improves your quality of life during a challenging process and supports treatment adherence. Invest in your mental health — it matters.

Q: Should my partner also prepare before IVF?
A: Absolutely. Sperm quality is a critical determinant of fertilisation rates, embryo quality, and ultimately IVF success. Partners should ideally begin their preparation 3 months before the cycle, focusing on diet, targeted supplementation (CoQ10, zinc, vitamins C and E), lifestyle improvements, and avoiding heat exposure.

Q: How much does IVF preparation cost in Hong Kong?
A: Costs vary depending on investigations, supplements, and any additional services such as acupuncture or counselling. Budget approximately HK$1,500–5,000 for pre-IVF investigations and HK$500–2,000 per month for a quality supplement protocol. These costs are modest relative to the investment in IVF treatment itself and the potential impact on outcomes.

Q: Can I still exercise during IVF?
A: Yes, moderate exercise during the preparation phase is encouraged. However, once you begin ovarian stimulation, reduce intensity to low-impact activities such as walking and gentle yoga. High-impact exercise during stimulation can increase the risk of ovarian torsion (twisting of the ovary), especially as follicles grow.

Q: Does age affect how much I need to prepare?
A: Yes. Women over 35, and particularly those over 40, have a more limited window to improve egg quality and should prioritise preparation even more urgently. Older oocytes are more susceptible to mitochondrial dysfunction and chromosomal errors, making antioxidant supplementation (especially CoQ10) and lifestyle optimisation particularly important.

Q: Are there any foods specifically shown to improve egg quality?
A: Foods rich in antioxidants, omega-3 fatty acids, and folate are most strongly associated with egg quality. Specifically: leafy greens (spinach, kale), berries (blueberries, raspberries), fatty fish (salmon, sardines), walnuts, avocado, eggs, and colourful vegetables. Avoiding inflammatory foods (processed meats, refined sugars, trans fats) is equally important.

Q: What is the role of the endometrial lining in IVF success?
A: The endometrial lining (uterine lining) must be adequately thick (typically ≥7mm, ideally ≥8–10mm) and have a trilaminar (triple-layer) pattern at the time of embryo transfer. Factors that support optimal endometrial development include adequate oestrogen levels during stimulation, sufficient blood flow (supported by iron, vitamin E, and omega-3 fatty acids), addressing any anatomical issues (fibroids, polyps, adhesions), and avoiding vasoconstrictors like nicotine.

Bringing It All Together: Your IVF Preparation Checklist

Preparing for IVF is not about perfection — it's about doing everything within your power to give your treatment the best possible chance. Here is a practical summary checklist:

Nutrition:

• ☑ Adopt a Mediterranean-style diet rich in antioxidants and healthy fats
• ☑ Eliminate alcohol and reduce caffeine to ≤200mg/day
• ☑ Increase omega-3 intake through fatty fish and/or supplementation
• ☑ Reduce processed foods, refined sugars, and trans fats
• ☑ Stay well hydrated (8–10 glasses of water daily)

Supplementation (confirm with your specialist):

• ☑ Prenatal multivitamin with methylfolate and vitamin D
• ☑ CoQ10 (ubiquinol form, 400–600mg daily for women; 200–400mg for men)
• ☑ Omega-3 fish oil (1,000–2,000mg DHA/EPA daily)
• ☑ Vitamin D (supplement to maintain levels ≥30 ng/mL)
• ☑ For PCOS: myo-inositol (2–4g daily)

Lifestyle:

• ☑ Stop smoking and vaping completely
• ☑ Exercise moderately for 30 minutes most days
• ☑ Achieve a healthy BMI if needed
• ☑ Prioritise 7–9 hours of quality sleep
• ☑ Reduce endocrine disruptor exposure

Mental health:

• ☑ Practice mindfulness or stress-reduction techniques daily
• ☑ Build your support network
• ☑ Consider fertility counselling
• ☑ Communicate openly with your partner

Medical:

• ☑ Complete all recommended fertility investigations
• ☑ Test and optimise thyroid function (TSH <2.5)
• ☑ Consider sperm DNA fragmentation testing for male partner
• ☑ Discuss endometrial cavity assessment with your specialist

The IVF journey can feel long and uncertain, but the preparation phase is one of the most empowering parts of the process — a time when you have real agency over the factors that influence your outcome. Every healthy meal, every supplement taken consistently, every stress-reduction practice, and every good night's sleep is an investment in your fertility. You are not simply waiting for treatment to begin; you are actively preparing your body for the opportunity of a lifetime.

The science is clear: couples who arrive at their IVF cycle well-nourished, well-supplemented, and in good physical and emotional health achieve better outcomes. Give yourself the best possible start.