Iris Montgomery Reveals the Gut-Healthy Foods That Reduce Bloating

Discover gut-healthy foods that reduce bloating, support a balanced microbiome, and improve digestion—plus practical meal-prep ideas and simple habits for lasting relief.

Bloating can feel like an instant confidence thief. One minute you feel fine, the next your stomach feels tight, swollen, and uncomfortable—sometimes with gas, pressure, or a frustrating “food baby” look that doesn’t match what you ate. The most confusing part is that bloating often shows up even when your diet seems “healthy.”

According to wellness writer Iris Montgomery, the goal isn’t to fear food or cut everything out. The real solution is to understand what bloating is trying to tell you—then use gut-healthy foods that calm the digestive tract, support your microbiome, and improve how your body processes fiber, carbohydrates, and fermentation in the intestines. When you choose the right foods (and combine them the right way), bloating often improves in a noticeable, sustainable way.

This guide breaks down the science of bloating in plain English and highlights the foods that most reliably reduce it—without extreme restriction. You’ll also get practical meal-prep templates and habits that make these changes realistic for everyday life.

What Bloating Really Means (And Why “Healthy” Foods Can Still Trigger It)

Bloating is not a single condition. It’s a symptom—an experience of abdominal distension, pressure, or fullness—caused by a mix of factors that can include gas production, slow digestion, fluid shifts, and sensitivity in the gut-brain axis.

For many people, bloating comes from fermentation. Your gut bacteria break down certain carbohydrates and fibers that your body can’t fully digest on its own. That fermentation process is normal and often beneficial, but when it happens too fast, too intensely, or in the wrong place in the digestive tract, gas builds up and you feel uncomfortable.

Even “healthy” foods can trigger bloating if:

    • You increase fiber too quickly and your microbiome hasn’t adapted yet.
    • You’re sensitive to certain fermentable carbs (often called FODMAPs) found in foods like onions, garlic, wheat, beans, and some fruits.
    • You have constipation (even mild), so gas and stool move more slowly.
    • You swallow excess air from eating fast, drinking carbonated beverages, or chewing gum.
    • Stress and poor sleep make your gut more reactive and sensitive.

If you want lasting relief, the smartest approach is not “less food.” It’s better digestion—and digestion is heavily influenced by your gut microbiome, your fiber types, your hydration, and your daily eating rhythm.

For a general overview of bloating triggers and when it may signal a more serious issue, this resource from Mayo Clinic on bloating is a helpful reference.

The Gut-Healthy Foods That Most Often Reduce Bloating

Iris Montgomery’s rule is simple: choose foods that improve gut motility, strengthen the gut lining, and support a healthier balance of bacteria—without overwhelming fermentation. That means being intentional about fiber type, food form, and portion size.

1) Soluble Fiber: The “Gentle” Fiber That Feeds the Microbiome

Soluble fiber forms a gel-like texture in the gut. It helps stabilize digestion, supports more regular bowel movements, and often feels gentler than very rough insoluble fiber. It also feeds beneficial bacteria, which can improve long-term bloating—once your gut adapts.

Top soluble-fiber foods that are commonly well-tolerated:

Oats (especially oatmeal), chia seeds, ground flaxseed, kiwi, citrus, carrots, and sweet potato.

Key tip: If you’re currently low-fiber, increase soluble fiber slowly—think “one small upgrade” at a time—so your microbiome has time to adjust without producing excessive gas.

2) Prebiotic Foods: Targeted Fuel for Beneficial Bacteria

Prebiotics are specific fibers that feed beneficial microbes. They can be powerful for gut health, but they can also cause bloating if you start too aggressively. The trick is to begin with smaller, gentler prebiotic sources and build up.

Often well-tolerated prebiotic choices include:

Greenish bananas (slightly underripe), oats, kiwi, cooked-and-cooled rice or potatoes (resistant starch), and small portions of lentils if tolerated.

Some prebiotics like onions and garlic are fantastic for the microbiome but can be high-trigger for sensitive digestion. You don’t need to force them. You can support gut health with many other options while you rebuild tolerance.

3) Fermented Foods: Support Digestion Without Overdoing It

Fermented foods can introduce helpful microbes and organic acids that support digestion. But more is not always better—especially at the beginning. Iris recommends starting with one tablespoon portions and seeing how your body responds.

Commonly helpful options:

Plain yogurt (or lactose-free yogurt if dairy triggers symptoms), kefir, kimchi, sauerkraut, and miso.

If you bloat from fermented foods, it doesn’t necessarily mean they’re “bad.” It may mean your gut is sensitive right now, or you’re combining them with other high-fermentable foods in the same meal. Start low, go slow, and be consistent.

4) Low-Gas Vegetables: Keep the Nutrients, Reduce the Pressure

Vegetables are essential for gut health—but some produce more gas than others, especially when eaten raw. Iris’s approach is to keep vegetables in the diet, but choose lower-gas options and use cooking methods that make them easier to digest.

Lower-gas choices many people tolerate well:

Zucchini, spinach, cucumber, tomatoes, carrots, green beans, and bell peppers.

Cooking matters. Lightly steaming or sautéing vegetables often reduces bloating compared to large raw salads, especially if your digestion is currently sluggish.

5) Ginger, Peppermint, and Warm Herbal Teas: Gentle Motility Support

Some bloating is motility-related—meaning food and gas move too slowly through the intestines. Ginger and peppermint are widely used for digestive comfort, especially after meals. Warm tea also supports hydration and can feel soothing on a tense gut.

If you like a convenient option, many people use peppermint tea as part of a post-meal routine. Here is an example of a common option on Amazon: peppermint tea on Amazon. (Choose unsweetened varieties and start with one cup daily.)

6) Adequate Protein and Healthy Fats: Reduce Cravings, Stabilize Digestion

People often focus only on fiber for gut health, but balanced meals are critical for reducing bloating. A meal made of mostly carbohydrates (even “healthy carbs”) can create more fermentation and quicker swings in blood sugar, which may worsen cravings and stress hormones.

Protein and healthy fats slow digestion in a beneficial way and help keep meals satisfying. Iris suggests building meals around:

Eggs, fish, chicken, tofu, Greek yogurt, plus fats like olive oil, avocado, and nuts—paired with digestible vegetables and a manageable portion of fiber-rich carbohydrates.

Balanced meals don’t just support your physique—they support your nervous system, which strongly influences digestive comfort.

For deeper background on fiber types and how they support digestive health, the Harvard T.H. Chan School of Public Health overview on fiber is a strong educational resource.

How Iris Builds Bloat-Friendly Meals (Without Cutting Everything Out)

Iris Montgomery doesn’t believe in “perfect” eating. She believes in eating patterns that your body can consistently digest. That means paying attention to food combinations, portion thresholds, and timing.

The “Calm Plate” Template

For most people, the most bloat-friendly plate is built like this:

Protein + cooked vegetables + a gentle fiber source + healthy fat.

Examples (simple, repeatable):

    • Breakfast: Oatmeal with chia seeds, kiwi, and a spoon of yogurt (or lactose-free yogurt).
    • Lunch: Chicken or tofu bowl with sautéed zucchini/spinach, olive oil, and cooled rice (resistant starch).
    • Dinner: Salmon with roasted carrots and green beans, plus a small sweet potato.

Notice what’s missing: giant raw salads, heavy sauces, sugary drinks, and stacked high-FODMAP combinations in one sitting. This doesn’t mean those foods are “bad.” It means when you’re actively reducing bloating, you build meals that digest calmly.

The “One Change at a Time” Rule

A common mistake is adding multiple “gut health” foods all at once—fiber supplements, fermented foods, beans, cruciferous vegetables, and protein shakes—then blaming the gut for reacting. If your current diet is low in fiber, your microbiome will adapt best when changes are gradual.

Iris recommends a simple progression:

Week 1: Add one gentle fiber daily (oats or kiwi).

Week 2: Add a small fermented food portion a few days per week.

Week 3: Add another prebiotic food (cooled rice/potatoes or a small lentil portion).

Week 4: Increase vegetable diversity—mostly cooked—while watching comfort.

This method is slower than “detox” culture, but it’s far more reliable, especially for people with sensitive digestion.

Common Mistakes That Keep Bloating Around (Even With Healthy Foods)

If you’re eating “clean” yet still bloated, Iris encourages looking at these overlooked factors. They are not moral failures—they are biological patterns.

Eating Too Fast and Not Chewing Enough

Digestion begins in the mouth. When you rush meals, you swallow more air and send larger food particles into the stomach, increasing the workload of digestion. Slower eating can be one of the simplest anti-bloating tools.

Stacking Fermentable Foods in One Meal

It’s one thing to eat oats. It’s another to eat oats, apple, honey, yogurt, and a big serving of beans later in the day—especially if your gut is sensitive. Individual foods may be fine, but the total fermentable load can exceed your current tolerance.

Overdoing “Healthy” Sweeteners and Protein Bars

Sugar alcohols and certain sweeteners can trigger gas and bloating in many people. Many “diet” products contain ingredients that are notorious for digestive discomfort, even if the label looks health-focused.

Not Addressing Constipation

Constipation doesn’t always mean you never go. It can mean incomplete elimination or slow transit time. When stool movement is sluggish, gas builds behind it. Increasing fiber can help—but only if hydration and mineral intake are adequate. Otherwise, fiber can worsen symptoms.

Stress and Poor Sleep

Your gut is sensitive to your nervous system. Chronic stress can increase gut sensitivity, slow motility, and alter microbial balance. Poor sleep changes hunger hormones and increases inflammation, making bloating more likely. Nutrition helps, but lifestyle rhythm matters too.

When to Consider Medical Guidance

Bloating is common, but persistent or severe symptoms deserve attention. If bloating is accompanied by unexplained weight loss, blood in stool, persistent vomiting, fever, significant pain, anemia, or a sudden change in bowel habits, it’s important to speak with a qualified healthcare professional. A personalized evaluation can rule out conditions that require targeted treatment.

For everyday bloating linked to diet and digestion, Iris’s strategy is to focus on gentle fibers, cooked vegetables, balanced meals, and gradual microbiome support—then observe patterns, not perfection.

Bottom line: You don’t need to eliminate everything. You need to build a gut-friendly pattern your body can digest consistently.