Did you know your gut health may play a role in how you feel during and after pregnancy? If you’re pregnant and living in a larger body, understanding the connection between your gut and your mental health might be a tool for navigating this season with more confidence and care.
A new study from the University of Turku in Finland has shed light on how gut bacteria are connected to depression and anxiety during and after pregnancy, especially in people who live in larger bodies. As doulas who support all bodies, we’re breaking it down for you in simple, supportive terms.
Mental Health and Pregnancy: Why It Matters
It’s totally normal for mood shifts to happen during pregnancy and postpartum. But when these shifts become persistent anxiety or depression, they can make pregnancy and parenting harder, and support becomes even more important.
People in larger bodies face higher risks of perinatal mood disorders, not because of their size itself, but because of factors like inflammation, stigma, and systemic healthcare bias. That’s why research focused specifically on this group matters—and why we as doulas offer trauma-informed, fat-positive support every step of the way.
What Is the Gut-Brain Axis?
The gut-brain axis is the communication highway between your brain and your digestive system. Your gut is full of bacteria—called your microbiome—and they help produce mood-related chemicals like serotonin. When your gut is out of balance, it can impact your energy, mood, sleep, and stress levels.
What the Study Found
Researchers followed hundreds of pregnant people with overweight or obesity from early pregnancy through one year postpartum. They looked at mental health symptoms (like depression and anxiety) and gut microbiota (the bacteria in the gut). Here’s what they discovered:
Key Findings:
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Certain gut bacteria were more common in people who experienced depression or anxiety during pregnancy or postpartum.
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One species, Hungatella hathewayi, which may promote inflammation, was linked with postpartum depression.
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Another species, Bacteroides clarus, was associated with postpartum anxiety and prenatal depressive symptoms.
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Inflammation may be a connecting factor between these bacteria and mental health symptoms.
What They Didn’t Find
- There were no significant differences in overall gut diversity (meaning the number or variety of bacteria).
- The impact seemed to stem more from the presence of specific species, rather than the number of bacterial types in the gut.
What This Means for You
If you’re pregnant and have a larger body, this research validates what you may have felt: that your physical health, nutrition, stress, and mood are deeply interconnected—and still your body isn’t to blame. The gut-brain connection provides a new perspective on understanding perinatal mental health.
You deserve care that respects your body, mind, and the entirety of your experience.
Supporting Your Gut and Mental Health in Pregnancy
Here are a few ways to gently support your gut-brain health during pregnancy (Please consult your physician for more personalized advice and guidance.)
- Eat a variety of fiber-rich foods (fruits, veggies, legumes, and whole grains).
- Stay hydrated to support digestion and maintain energy levels.
- Prioritize rest and mental health support, such as therapy, support groups, or time with a doula.
- Avoid unnecessary antibiotics unless prescribed.
- Ask about probiotic support: some may be beneficial, especially during pregnancy (always consult with your healthcare provider).
Our Fat-Positive Doula Support
At Big Fat Pregnancy, we specialize in supporting pregnant people in larger bodies. We know you deserve more than weight-focused advice—you deserve evidence-based, shame-free, and inclusive care.
You are not broken. Your body is not a problem. Your experience matters.
Whether you’re navigating pregnancy anxiety, postpartum mood shifts, or want someone who understands your journey, we’re here for you.
🧡 Ready for Empowered Support?
Let’s talk. We offer virtual and in-person support for plus-size pregnancy, postpartum care, and birth preparation. Because you deserve care that feels good in your body.
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