Eating for SIBO: A Compassionate Guide to the Small Intestinal Bacterial Overgrowth Diet

If you’re Googling “Do I have SIBO?,” chances are the symptoms you’re experiencing in your gut have left you frustrated, uncomfortable, or maybe even desperate for answers. Maybe you have intense pain from gas and bloating. Maybe you’re nauseous with every bite. Maybe you haven’t pooped in a week – ouch. Maybe you’ve already been diagnosed with SIBO—or you just suspect you might have it. And maybe, like many of our clients at Karuna Wellness Studio, you’re also managing a complicated history with food, a fragile relationship with your body, or a recovery journey from disordered eating.

Let’s start with this: we see you. And you’re not alone. Addressing gut issues while working through recovery can be triggering, but with the help of a compassionate, experienced provider, you can get relief and support for your recovery–at the same time.

 

What is SIBO?

SIBO stands for Small Intestinal Bacterial Overgrowth, a condition where an excess number of bacteria (often the “good” kind, just in the wrong place) take up residence in the small intestine, where they’re not supposed to be. This can lead to a host of uncomfortable symptoms: bloating, gas, constipation, diarrhea, abdominal pain, and even nutrient deficiencies (1).

SIBO is often linked to underlying conditions like IBS, celiac disease, or chronic stress, and can sometimes result from gastric surgery, or structural or motility issues in the gut. Treatment typically includes a combination of medical therapies (like antibiotics or herbal antimicrobials), lifestyle changes, and potentially, dietary strategies.

But here’s the thing: a dietary change for SIBO doesn’t have to mean restriction, fear, or relapse.

 

SIBO Symptoms and Treatment: Why Diet Isn’t the Only Piece

While there’s no one-size-fits-all SIBO food list, many people are directed to the low FODMAP diet, an elimination approach developed by MONASH University that reduces fermentable carbohydrates that feed gut bacteria (2). However, it is important to clarify that a low FODMAP diet has not been clinically proven to treat SIBO and more extensive research is needed to study its effectiveness. Recommendations to follow a low FODMAP diet to manage SIBO are based on preliminary studies and anecdotal evidence–in other words, some people suffering from SIBO who have consumed a low FODMAP diet reported that it helped their gut feel better (3). 

Therefore, while a low FODMAP diet can be considered to help relieve your symptoms, you and your healthcare provider together should evaluate the risks of a restrictive diet, the stress of rigid food rules, and the fact that an elimination diet is never designed to be a long-term solution. In fact, following a strict low FODMAP diet long-term can decrease microbial diversity in the gut and may cause harm if not reintroduced properly (4).

And for those in recovery from disordered eating, any elimination diet can feel risky.

 

Q&A: Your Top Questions Answered Compassionately

Let’s get real about what might be on your mind right now:

Did my eating disorder cause my SIBO?

There’s no clear-cut answer, but it’s possible that past disordered eating patterns (like chronic restriction, bingeing and purging, or laxative use) may have played a role. These behaviors can slow gut motility, alter microbiome composition, and make the small intestine more vulnerable to bacterial overgrowth (3).

That does not mean you caused this.

It means your body has been through a lot, and it’s asking for care. Our job as dietitians isn’t to blame you for the past. It’s to help you move forward with compassion and evidence-based care.

Will I relapse if I try a low FODMAP diet to help treat my SIBO?

This is such an important and valid concern. For someone with a history of restriction or food fear, the idea of starting a SIBO diet can feel like walking into dangerous territory.

Our answer? Let’s figure it out together. 

Typically, we don’t recommend any elimination diet as a first line of defense, so we’ll review all treatment options and together, create a plan that supports gut healing without reinforcing harmful patterns. We’ll focus on what you can eat, not just what to avoid. And we’ll only use structured approaches like low FODMAP for short periods, if needed, with clear plans for reintroduction and plenty of mental health support along the way.

 

What Can I Do Right Now?

Here are three gentle, supportive steps to take:

1. Focus on regular, consistent meals.
   
   Blood sugar swings can exacerbate SIBO symptoms. Eating every 3-4 hours helps support motility and stabilizes energy and mood.

2. Support your nervous system.
   
   Chronic stress is a major driver of gut dysfunction. Try daily practices like deep breathing, gentle movement, or mindfulness to activate the vagus nerve, your gut’s communication superhighway.

3. Work with a provider who sees the whole picture.
   
   Not every practitioner understands the nuanced intersection of SIBO symptoms and treatment and a history of disordered eating. At Karuna, we specialize in just that. We won’t put you on a rigid plan. We’ll meet you where you are, with science, flexibility, and compassion.

So… What Can I Eat with SIBO?

We know you probably came here looking for a SIBO food list and we’ll share one, customized to you, if we work together. But the truth is, your plan should be as unique as your symptoms, history, and relationship with food.

Some foods commonly well-tolerated in the early stages of healing might include:

• Cooked low-FODMAP vegetables like zucchini, carrots, and spinach

• Lean proteins like eggs, fish, and poultry

• Gluten-free grains like rice, oats, and quinoa

• Lactose-free dairy or hard cheeses

• Fats like olive oil and ghee

But instead of focusing on the “safe list,” let’s ask: How can we support your body’s healing while protecting your mental health, too?

 

Final Thoughts

You deserve care that’s evidence-based and compassion-centered. Yes, the small intestinal bacterial overgrowth diet can be a helpful tool…but it should never come at the cost of your recovery, joy, or peace with food.

If you’re navigating gut issues, suspect SIBO, or are feeling overwhelmed about how to eat while maintaining your recovery, we’re here to help. Book a discovery call with one of our compassionate dietitians. We’ll walk beside you every step of the way, no judgment, no shame, just support.

 

References:

1. Small intestinal bacterial overgrowth (SIBO). Mayo Clinic. Accessed September 25, 2024. https://medlineplus.gov/ency/article/000222.htm
2. FODMAPS and Irritable Bowel Syndrome. Monash University. Accessed September 25, 2025. https://www.monashfodmap.com/about-fodmap-and-ibs/
3. FODMAP Diet: What You Need to Know. John Hopkins Medicine. Accessed September 25, 2025. https://www.hopkinsmedicine.org/health/wellness-and-prevention/fodmap-diet-what-you-need-to-know
4. Bootz-Maoz, H. et al. (2022). “Diet-induced modifications to human microbiome reshape colonic homeostasis in irritable bowel syndrome.” CellPress, 6(7).