Can nutrition help with recurrent miscarriage?

Can nutrition help with recurrent miscarriage?

If you have experienced recurrent pregnancy loss, I want to start by saying something that I think is important before we talk about anything else. This is not your fault. Pregnancy loss is one of the most devastating experiences a woman can go through, and nothing you ate, nothing you did, and nothing you failed to do caused this. Many miscarriages, particularly in the first trimester, are caused by chromosomal abnormalities that are entirely outside your control.

I share that because when I work with women who have experienced recurrent loss, I see so much guilt and self-blame sitting alongside the grief. And I want you to know that the nutritional support I offer is not about fixing something you did wrong. It is about giving your body every possible advantage as you prepare to try again, and addressing the modifiable factors that may be quietly contributing to your losses.

Because here is what I know to be true: there are modifiable factors. And nutrition is one of the most powerful ways to address them.

What the research actually shows

A landmark systematic review and meta-analysis published in Fertility and Sterility, analysing 20 studies involving more than 63,000 women, found compelling evidence that what you eat around the time of conception and in early pregnancy is meaningfully associated with your risk of miscarriage. The research found that higher intake of fruit was associated with a 61% reduction in miscarriage odds, vegetables with a 41% reduction, seafood, dairy, eggs, and wholegrains were all associated with meaningfully lower miscarriage rates. In contrast, a diet rich in processed foods was associated with nearly double the odds of miscarriage.

A subsequent multicentre cohort study conducted by Tommy's National Centre for Miscarriage Research at the University of Birmingham, published in 2025, focused specifically on women with a history of recurrent miscarriage, studying 1,035 women across three university hospital research centres in the United Kingdom. It found that a periconceptual diet abundant in fruit, vegetables, seafood, dairy, eggs, and grain was associated with decreased miscarriage odds even in women who had already experienced repeated losses.

This is not small or insignificant research. This is some of the most rigorous work being done in this space, and it gives me genuine clinical confidence that what you eat in the months before and around conception matters deeply.

The root causes I look for

When I work with women who have experienced recurrent pregnancy loss, I am always looking beyond the surface. There are several underlying factors that are commonly missed in standard investigations and that nutrition can directly address.

Inflammation is one of the most significant. A diet high in processed foods, refined carbohydrates, and trans fats creates a pro-inflammatory internal environment that can interfere with implantation and early pregnancy. A 2024 review confirmed that a balanced diet rich in nutrients with antioxidant properties helped prevent miscarriage, while a diet with pro-inflammatory effects increased the risk. Shifting your dietary pattern toward whole, anti-inflammatory foods is one of the most impactful changes you can make.

Nutrient deficiencies are another critical area. Research confirms that vitamin D deficiency is strongly associated with miscarriage, with one meta-analysis revealing a clear link between vitamin D insufficiency and pregnancy loss. High-dose folate supplementation before conception has been shown to reduce the risk of miscarriage and stillbirth. Multivitamin supplementation, even when lacking folic acid or vitamin A, was found in research to reduce total fetal loss. These are not minor findings. They represent real, addressable gaps that functional testing can identify and that targeted supplementation can correct.

Thyroid function is another area I pay close attention to. Hypothyroidism is well established as a contributor to miscarriage risk, and optimising iodine and selenium intake supports healthy thyroid function in ways that standard treatment often does not address.

Omega-3 fatty acids deserve special mention. A 2023 review published in Food Science and Nutrition highlighted the evidence for omega-3 supplementation in addressing recurrent miscarriage, specifically through its ability to modulate immune dysregulation, reduce oxidative stress, and address inflammatory and endocrine pathways that are closely linked to the causes of recurrent pregnancy loss.

Oxidative stress and egg quality also matter enormously. When eggs carry chromosomal abnormalities that lead to miscarriage, it is not always purely an age issue. Oxidative damage to the egg during its maturation process is a modifiable contributor, and nutrients like CoQ10, vitamin E, N-acetylcysteine, and selenium directly protect against this damage. Research has shown that N-acetylcysteine supplementation, specifically, was associated with a higher chance of live birth in women with a history of recurrent miscarriage.

The uterine and vaginal microbiome is an emerging and important area. Emerging research suggests that microbiome imbalances can affect implantation and early pregnancy, and a targeted probiotic protocol may be appropriate depending on your individual presentation.

What I want you to know

I will never promise you that nutrition will prevent another loss. I cannot make that promise, and anyone who does is not being honest with you. What I can tell you is that there are very real, evidence-based changes you can make that reduce your risk, support your body, and give the next pregnancy the strongest possible foundation.

And perhaps just as importantly, working on your nutrition and your health in this waiting period gives you something you can do. It gives you agency in a situation where so much feels beyond your control. In my experience, that matters enormously, not just physically, but emotionally too.

When we work together, we will go through your full history, look at your blood results and any functional testing that may be relevant, assess your diet, your nutrient status, your inflammation markers, your thyroid function, and your gut health. We will build a personalised plan that addresses your specific picture, not a generic protocol.

You deserve that level of care. And I am here to provide it.

Sources: Fertility and Sterility 2023, Chung et al. (systematic review and meta-analysis of dietary patterns and miscarriage risk, 63,000 women); BJOG 2025, Tommy's National Centre for Miscarriage Research (periconceptual diet and recurrent miscarriage, 1,035 women); PubMed 2024, Nippon Medical School (nutrients and recurrent pregnancy loss review); Food Science and Nutrition 2023 (omega-3 fatty acids and recurrent miscarriage); The Dietologist (evidence-based fertility nutrition clinical practice); ScienceDaily 2023 (University of Birmingham, diet and miscarriage risk); ClinicalTrials.gov (nutritional deficiency and recurrent miscarriage); FACTS About Fertility 2023