← Is it safe?

Are Walnuts Safe During Pregnancy?

Medically reviewed by Dr. Elena Vasquez, MD, FAAP, Board-certified pediatrician & medical reviewer
Generally safe

Is walnuts safe during pregnancy?

Walnuts are safe and beneficial in pregnancy as a plant source of omega-3 (ALA) fatty acids that support fetal brain and eye development. In short, walnuts is generally considered safe during pregnancy when you follow the guidance below.

Why this is the guidance

During pregnancy your immune system is naturally suppressed and your body is sharing everything with your baby, so foods are judged on two things: the chance of foodborne illness (like listeria or salmonella) and whether anything in them — caffeine, mercury, alcohol, certain additives — can reach your baby.

How to enjoy it safely

You don't need to avoid walnuts. As with any food in pregnancy, choose fresh, store it properly, and cook or wash it as you normally would. A varied diet in normal portions is exactly the right approach — there's no special limit to worry about here.

What about breastfeeding?

Pregnancy and breastfeeding aren't the same — some things that are limited while you're pregnant are perfectly fine once you're nursing, and occasionally the reverse is true. If you're past delivery and wondering about walnuts while breastfeeding, check with your provider, since the answer can be different from the pregnancy guidance above.

The bottom line

Walnuts: generally considered safe in pregnancy. Enjoy it sensibly as part of a varied, healthy pregnancy. This page is general education, not medical advice — your provider knows your history and is the final word for your pregnancy.

Frequently asked

Is walnuts safe during pregnancy?

Walnuts are safe and beneficial in pregnancy as a plant source of omega-3 (ALA) fatty acids that support fetal brain and eye development.

How much walnuts can I have during pregnancy?

Walnuts are safe and beneficial in pregnancy as a plant source of omega-3 (ALA) fatty acids that support fetal brain and eye development. As always, a varied diet and normal portions are the sensible approach.

Is walnuts safe while breastfeeding?

Guidance can differ once you’re no longer pregnant — some things that are limited in pregnancy are fine while breastfeeding, and vice versa. Check with your provider about walnuts specifically for your situation.

More food safety questions

Browse all safety topics →

References

Sources we consult

We cross-check our editorial guidance against these authorities. Click any source for the original.

Gear & guides for a safe pregnancy

Expert-tested, safety-first picks for what’s next.

Fact-checked by Dr. Elena Vasquez, MD, FAAP (Board-certified pediatrician & medical reviewer)