Skip to the answer
Gyna

Eating for fertility

What should I eat while trying to conceive?

Diet does look like it matters, and the clearest signal is for ovulation.

Start here

How should a fertility diet plan be personalized for me?

Direct answer

Diet does look like it matters, and the clearest signal is for ovulation.

Read the full answer

Choose your route

Which question sounds like yours?

Build an everyday eating pattern

Start with what is useful for most people, then check whether your situation changes it.

Answer

What should I eat while trying to conceive?

The evidence reviewed here does not establish one required fertility diet.

Read the answer

Avoid harm without fearing food

Separate practical food-safety decisions from long lists of foods blamed for infertility.

Answer

Which foods should I avoid while trying to conceive?

You don't need a long fertility-food blacklist.

Read the answer

Adjust for PCOS or irregular ovulation

PCOS, irregular periods, being underweight, and carrying extra weight can point in different directions.

Answer

What fertility diet is appropriate with PCOS?

- Choosing a diet?

Read the answer

Can diet improve egg quality?

Answer

Can diet improve egg quality?

A healthy diet can support general and preconception health.

Read the answer

The evidence landscape

What is clear, and what is not?

Answer in brief

Diet does look like it matters, and the clearest signal is for ovulation. In large cohorts, women eating a whole-food pattern with vegetables, whole grains, plant protein and fish had much less ovulatory infertility. None of that is proven: no trial in the evidence reviewed here establishes that a personalized plan improves conception. What personalizes your plan is whether you ovulate regularly (polycystic ovary syndrome, or PCOS, is the usual reason not), your weight, your age, and any medical condition. Diet shouldn't delay fertility care.

Why the evidence is limited

Two peer-reviewed reviews of the diet-and-fertility literature carry the answer, along with the cohorts and trials they report. Nine guideline and review documents from ASRM, Cochrane, ACOG, the NIH and the NHS place it and supply the specific folic acid, mercury and weight guidance.

What can change the answer

The honest limit: some randomized trials of weight-loss programmes in women with obesity found more ovulation or unassisted conceptions, but pooled and live-birth evidence remained uncertain. The largest trial found fewer births within its 24-month window (a difference that disappeared once pregnancies conceived in the window but born after it were counted), and one meta-analysis found a possible increase in miscarriage after lifestyle weight-loss programmes (an unresolved signal).

When the answer changes

When should I bring in a clinician?

The honest limit: some randomized trials of weight-loss programmes in women with obesity found more ovulation or unassisted conceptions, but pooled and live-birth evidence remained uncertain. The largest trial found fewer births within its 24-month window (a difference that disappeared once pregnancies conceived in the window but born after it were counted), and one meta-analysis found a possible increase in miscarriage after lifestyle weight-loss programmes (an unresolved signal). The fertility-outcome pattern findings used here are mainly adherence associations and cannot say that eating a certain way raises your chance. The harms to guard are delaying care to diet, and restrictive or very-low-calorie eating without supervision. If pregnancy is possible, discuss the timing of any weight-loss medicine with its prescriber and ask the prescribing clinician before changing it. After bariatric surgery the guidance is to wait 12 to 18 months and have nutrition assessed. Absent or irregular periods, diabetes, coeliac disease, or being underweight are conversations for a clinician, not diet tweaks.

Where could I go next?

Fertility supplements

Which supplements are useful, and which need more caution?

Getting pregnant and testing

What can I do now, and when should I ask for help?

Our public fertility answers link to the sources behind them. If an answer has been reviewed by a clinician, that will be noted on the page.

How we check answers · Tell us something is wrong