Nutrition During IVF — What to Eat in Each Phase

IVF spans 3 months from preparation through pregnancy testing. Nutrition during each phase should support different physiological needs. This page covers what to eat, and what to avoid, in pre-cycle prep, stimulation, retrieval and early pregnancy.

1. Pre-cycle (months -3 to 0) — building reserves

This is the highest-yield phase. Mediterranean pattern eating, vegetables, fruits, whole grains, olive oil, fish, legumes. Adequate protein (1.2–1.6 g/kg body weight). Folate (400–800 mcg) starting now. Vitamin D correction. Omega-3 from fish 2–3 times weekly or supplement. Avoid ultra-processed food, trans fats, excess alcohol, smoking entirely.

2. Stimulation phase, hydration matters

Increased fluid intake (3–3.5 litres daily) helps egg development and reduces OHSS risk. Salt-balanced electrolytes (coconut water, broth, electrolyte drinks) more useful than plain water alone for women with PCOS or high response. Adequate protein continues. Reduce ultra-processed food. Avoid alcohol entirely during stimulation.

3. After retrieval, supporting recovery

Increased protein helps tissue recovery (1.5–2 g/kg). Anti-inflammatory foods (fatty fish, leafy greens, berries, turmeric). Magnesium-rich foods help with constipation common after retrieval. Hydration maintained at 3 litres. Avoid alcohol, raw seafood, soft cheeses, deli meats (you may be in early pregnancy).

4. Two-week wait, normal pregnancy precautions

Behave as if pregnant from day of transfer. Avoid alcohol, raw or undercooked food, unpasteurised dairy, deli meats, raw fish, excessive caffeine (limit to 1 cup daily). Eat regular meals to maintain blood sugar stability. Continue Mediterranean pattern. Avoid restrictive dieting.

5. After positive pregnancy test

Continue all pregnancy precautions. Folate continues (raised to 800 mcg). Iron from food and supplementation if deficient. Iodine adequacy. Calcium adequacy. Avoid mercury-heavy fish (king mackerel, swordfish). Manage nausea with small frequent bland meals if it develops.

6. If cycle is unsuccessful

Resume normal balanced eating. Allow emotional eating in moderation; do not lock into restrictive patterns out of guilt. Plan 4–6 weeks of physiological and emotional recovery before next cycle. Mediterranean pattern continues as foundation.

7. Foods often promoted (and what evidence says)

Pineapple cores, no proven implantation benefit. Brazil nuts (selenium) — modest theoretical benefit, not significant. Avocado, generally good for monounsaturated fat. Raspberry leaf tea, avoid during stimulation (uterine stimulant). Pomegranate, modest antioxidant benefit. None are substitutes for the broader dietary pattern.

8. Supplements through the cycle

Folate throughout. Vitamin D throughout (if deficient). Omega-3 (1–2 g daily). CoQ10 (200–600 mg) in pre-cycle and stimulation for older women or poor responders. Avoid: high-dose vitamin A, herbal blends, weight-loss products, megadose mineral supplements. Confirm any supplement with your specialist before continuing.

Frequently Asked Questions