Nutrition and Diet for IVF Success: What to Eat Before and During Treatment

Why Nutrition Matters for IVF Success

While no specific diet guarantees IVF success, nutrition plays a meaningful supporting role in reproductive health. The quality of your eggs, the environment of your uterus, and your body’s hormonal balance are all influenced by what you eat. Research consistently shows that a Mediterranean-style diet rich in vegetables, whole grains, legumes, healthy fats, and lean proteins is associated with better IVF outcomes in both women and men.

Key Nutrients That Support Fertility

Folate (or folic acid) is essential before and during early pregnancy to prevent neural tube defects and support cell division. Coenzyme Q10 (CoQ10) has strong evidence for improving egg quality and mitochondrial function in women, particularly those over 35. Vitamin D deficiency is strongly associated with reduced IVF success, and supplementation in deficient patients has shown improved implantation rates. Omega-3 fatty acids support egg quality and reduce inflammation. Iron, zinc, selenium, and B vitamins are also critical for reproductive health.

Best Foods to Eat Before and During IVF

Fill your plate with colourful vegetables and fruits rich in antioxidants, whole grains like brown rice and oats that stabilise blood sugar, legumes such as lentils and chickpeas for plant-based protein and iron, fatty fish like salmon and sardines for omega-3s, and healthy fats from avocado, olive oil, and nuts. Full-fat dairy has shown an association with improved fertility outcomes compared to low-fat dairy in some studies. Include turmeric and ginger for their anti-inflammatory properties.

Foods to Limit or Avoid During IVF

Alcohol should be avoided entirely during IVF cycles as even moderate consumption is associated with reduced egg quality and pregnancy rates. Processed foods, refined sugars, and trans fats promote inflammation and insulin resistance both harmful to fertility. Caffeine should be limited to under 200mg per day (roughly one cup of coffee). High-mercury fish like swordfish, shark, and king mackerel should be avoided due to potential embryo toxicity. Soy in large amounts may interfere with hormone balance.

Supplements Commonly Recommended Before IVF

Always discuss supplements with your IVF doctor before starting. Commonly recommended supplements include prenatal vitamins with folate, CoQ10 (200–600mg daily for 3 months before stimulation), Vitamin D if deficient, Omega-3 fish oil, and DHEA for poor ovarian responders (only under medical supervision). For men, CoQ10, Vitamin C, Vitamin E, zinc, and selenium can improve sperm parameters over a 3-month supplementation period.